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Finding the Fourth Proportional to 648,375.06, 893,686.53 and 433,436.70

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Solution

The fourth proportional to 648,375.06, 893,686.53 and 433,436.70 is: 597,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,375.06 : 893,686.53 = 433,436.70 : x
  2. Step 2: Convert to fraction form
    648,375.06/893,686.53 = 433,436.70/x
  3. Step 3: Cross multiply
    648,375.06x = 893,686.53 × 433,436.70
  4. Step 4: Simplify right side
    648,375.06x = 387,356,540,397.65
  5. Step 5: Solve for x
    x = 387,356,540,397.65/648,375.06
  6. Step 6: Final answer
    x = 597,426.65

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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.