Home / 476,280.38-657,275.40-261,440.43

Finding the Fourth Proportional to 476,280.38, 657,275.40 and 261,440.43

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Solution

The fourth proportional to 476,280.38, 657,275.40 and 261,440.43 is: 360,792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,280.38 : 657,275.40 = 261,440.43 : x
  2. Step 2: Convert to fraction form
    476,280.38/657,275.40 = 261,440.43/x
  3. Step 3: Cross multiply
    476,280.38x = 657,275.40 × 261,440.43
  4. Step 4: Simplify right side
    476,280.38x = 171,838,363,204.42
  5. Step 5: Solve for x
    x = 171,838,363,204.42/476,280.38
  6. Step 6: Final answer
    x = 360,792.45

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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.