Home / 1,040,340-1,560,510-292,386

Finding the Fourth Proportional to 1,040,340, 1,560,510 and 292,386

Calculator

Solution

The fourth proportional to 1,040,340, 1,560,510 and 292,386 is: 438,579

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,340 : 1,560,510 = 292,386 : x
  2. Step 2: Convert to fraction form
    1,040,340/1,560,510 = 292,386/x
  3. Step 3: Cross multiply
    1,040,340x = 1,560,510 × 292,386
  4. Step 4: Simplify right side
    1,040,340x = 456,271,276,860
  5. Step 5: Solve for x
    x = 456,271,276,860/1,040,340
  6. Step 6: Final answer
    x = 438,579

Related Problems

Find fourth proportional to 520,170, 780,255 and 146,193
Half scale
Find fourth proportional to 2,080,680, 3,121,020 and 584,772
Double scale
Find fourth proportional to 1,040,341, 1,560,511.50 and 292,387
Similar ratio
Find fourth proportional to 1,560,510, 2,340,765 and 438,579
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.