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Finding the Fourth Proportional to 648,248.77, 894,597.63 and 357,859.66

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Solution

The fourth proportional to 648,248.77, 894,597.63 and 357,859.66 is: 493,854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,248.77 : 894,597.63 = 357,859.66 : x
  2. Step 2: Convert to fraction form
    648,248.77/894,597.63 = 357,859.66/x
  3. Step 3: Cross multiply
    648,248.77x = 894,597.63 × 357,859.66
  4. Step 4: Simplify right side
    648,248.77x = 320,140,403,708.61
  5. Step 5: Solve for x
    x = 320,140,403,708.61/648,248.77
  6. Step 6: Final answer
    x = 493,854.24

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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.