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Finding the Fourth Proportional to 566,208.38, 781,373.03 and 311,565.03

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Solution

The fourth proportional to 566,208.38, 781,373.03 and 311,565.03 is: 429,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,208.38 : 781,373.03 = 311,565.03 : x
  2. Step 2: Convert to fraction form
    566,208.38/781,373.03 = 311,565.03/x
  3. Step 3: Cross multiply
    566,208.38x = 781,373.03 × 311,565.03
  4. Step 4: Simplify right side
    566,208.38x = 243,448,509,975.32
  5. Step 5: Solve for x
    x = 243,448,509,975.32/566,208.38
  6. Step 6: Final answer
    x = 429,962.75

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Double scale
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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.