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Finding the Fourth Proportional to 614,430.30, 921,645.45 and 362,487.90

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Solution

The fourth proportional to 614,430.30, 921,645.45 and 362,487.90 is: 543,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,430.30 : 921,645.45 = 362,487.90 : x
  2. Step 2: Convert to fraction form
    614,430.30/921,645.45 = 362,487.90/x
  3. Step 3: Cross multiply
    614,430.30x = 921,645.45 × 362,487.90
  4. Step 4: Simplify right side
    614,430.30x = 334,085,323,715.06
  5. Step 5: Solve for x
    x = 334,085,323,715.06/614,430.30
  6. Step 6: Final answer
    x = 543,731.85

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1.5x scale

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.