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Finding the Fourth Proportional to 668,357.16, 1,000,192.98 and 479,025.96

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Solution

The fourth proportional to 668,357.16, 1,000,192.98 and 479,025.96 is: 716,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,357.16 : 1,000,192.98 = 479,025.96 : x
  2. Step 2: Convert to fraction form
    668,357.16/1,000,192.98 = 479,025.96/x
  3. Step 3: Cross multiply
    668,357.16x = 1,000,192.98 × 479,025.96
  4. Step 4: Simplify right side
    668,357.16x = 479,118,402,429.76
  5. Step 5: Solve for x
    x = 479,118,402,429.76/668,357.16
  6. Step 6: Final answer
    x = 716,859.83

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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.