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Finding the Fourth Proportional to 607,979.66, 912,166.32 and 292,395.56

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Solution

The fourth proportional to 607,979.66, 912,166.32 and 292,395.56 is: 438,688.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,979.66 : 912,166.32 = 292,395.56 : x
  2. Step 2: Convert to fraction form
    607,979.66/912,166.32 = 292,395.56/x
  3. Step 3: Cross multiply
    607,979.66x = 912,166.32 × 292,395.56
  4. Step 4: Simplify right side
    607,979.66x = 266,713,381,949.54
  5. Step 5: Solve for x
    x = 266,713,381,949.54/607,979.66
  6. Step 6: Final answer
    x = 438,688.00

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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.