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Finding the Fourth Proportional to 614,600.10, 921,900.15 and 602,790.30

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Solution

The fourth proportional to 614,600.10, 921,900.15 and 602,790.30 is: 904,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,600.10 : 921,900.15 = 602,790.30 : x
  2. Step 2: Convert to fraction form
    614,600.10/921,900.15 = 602,790.30/x
  3. Step 3: Cross multiply
    614,600.10x = 921,900.15 × 602,790.30
  4. Step 4: Simplify right side
    614,600.10x = 555,712,467,988.55
  5. Step 5: Solve for x
    x = 555,712,467,988.55/614,600.10
  6. Step 6: Final answer
    x = 904,185.45

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Double scale
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Similar ratio
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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.