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Finding the Fourth Proportional to 562,053.16, 775,639.38 and 307,398.88

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Solution

The fourth proportional to 562,053.16, 775,639.38 and 307,398.88 is: 424,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,053.16 : 775,639.38 = 307,398.88 : x
  2. Step 2: Convert to fraction form
    562,053.16/775,639.38 = 307,398.88/x
  3. Step 3: Cross multiply
    562,053.16x = 775,639.38 × 307,398.88
  4. Step 4: Simplify right side
    562,053.16x = 238,430,676,695.89
  5. Step 5: Solve for x
    x = 238,430,676,695.89/562,053.16
  6. Step 6: Final answer
    x = 424,213.75

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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.