Home / 933,280-1,287,926.40-509,344

Finding the Fourth Proportional to 933,280, 1,287,926.40 and 509,344

Calculator

Solution

The fourth proportional to 933,280, 1,287,926.40 and 509,344 is: 702,894.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,280 : 1,287,926.40 = 509,344 : x
  2. Step 2: Convert to fraction form
    933,280/1,287,926.40 = 509,344/x
  3. Step 3: Cross multiply
    933,280x = 1,287,926.40 × 509,344
  4. Step 4: Simplify right side
    933,280x = 655,997,584,281.60
  5. Step 5: Solve for x
    x = 655,997,584,281.60/933,280
  6. Step 6: Final answer
    x = 702,894.72

Related Problems

Find fourth proportional to 466,640, 643,963.20 and 254,672
Half scale
Find fourth proportional to 1,866,560, 2,575,852.80 and 1,018,688
Double scale
Find fourth proportional to 933,281, 1,287,927.78 and 509,345
Similar ratio
Find fourth proportional to 1,399,920, 1,931,889.60 and 764,016
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.