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Finding the Fourth Proportional to 503,713.47, 695,271.15 and 402,444.03

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Solution

The fourth proportional to 503,713.47, 695,271.15 and 402,444.03 is: 555,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,713.47 : 695,271.15 = 402,444.03 : x
  2. Step 2: Convert to fraction form
    503,713.47/695,271.15 = 402,444.03/x
  3. Step 3: Cross multiply
    503,713.47x = 695,271.15 × 402,444.03
  4. Step 4: Simplify right side
    503,713.47x = 279,807,723,548.74
  5. Step 5: Solve for x
    x = 279,807,723,548.74/503,713.47
  6. Step 6: Final answer
    x = 555,489.86

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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.