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Finding the Fourth Proportional to 614,908.98, 922,643.70 and 315,599.72

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Solution

The fourth proportional to 614,908.98, 922,643.70 and 315,599.72 is: 473,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,908.98 : 922,643.70 = 315,599.72 : x
  2. Step 2: Convert to fraction form
    614,908.98/922,643.70 = 315,599.72/x
  3. Step 3: Cross multiply
    614,908.98x = 922,643.70 × 315,599.72
  4. Step 4: Simplify right side
    614,908.98x = 291,186,093,379.76
  5. Step 5: Solve for x
    x = 291,186,093,379.76/614,908.98
  6. Step 6: Final answer
    x = 473,543.41

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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.