Home / 876,851.40-1,315,277.10-315,683.40

Finding the Fourth Proportional to 876,851.40, 1,315,277.10 and 315,683.40

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Solution

The fourth proportional to 876,851.40, 1,315,277.10 and 315,683.40 is: 473,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,851.40 : 1,315,277.10 = 315,683.40 : x
  2. Step 2: Convert to fraction form
    876,851.40/1,315,277.10 = 315,683.40/x
  3. Step 3: Cross multiply
    876,851.40x = 1,315,277.10 × 315,683.40
  4. Step 4: Simplify right side
    876,851.40x = 415,211,146,870.14
  5. Step 5: Solve for x
    x = 415,211,146,870.14/876,851.40
  6. Step 6: Final answer
    x = 473,525.10

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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.