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Finding the Fourth Proportional to 755,098.86, 1,041,801.84 and 428,358

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Solution

The fourth proportional to 755,098.86, 1,041,801.84 and 428,358 is: 591,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,098.86 : 1,041,801.84 = 428,358 : x
  2. Step 2: Convert to fraction form
    755,098.86/1,041,801.84 = 428,358/x
  3. Step 3: Cross multiply
    755,098.86x = 1,041,801.84 × 428,358
  4. Step 4: Simplify right side
    755,098.86x = 446,264,152,578.72
  5. Step 5: Solve for x
    x = 446,264,152,578.72/755,098.86
  6. Step 6: Final answer
    x = 591,000.96

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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.