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Finding the Fourth Proportional to 562,747.78, 776,591.58 and 308,098.90

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Solution

The fourth proportional to 562,747.78, 776,591.58 and 308,098.90 is: 425,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,747.78 : 776,591.58 = 308,098.90 : x
  2. Step 2: Convert to fraction form
    562,747.78/776,591.58 = 308,098.90/x
  3. Step 3: Cross multiply
    562,747.78x = 776,591.58 × 308,098.90
  4. Step 4: Simplify right side
    562,747.78x = 239,267,011,547.26
  5. Step 5: Solve for x
    x = 239,267,011,547.26/562,747.78
  6. Step 6: Final answer
    x = 425,176.29

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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.