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Finding the Fourth Proportional to 668,800.59, 1,001,488.20 and 368,947.90

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Solution

The fourth proportional to 668,800.59, 1,001,488.20 and 368,947.90 is: 552,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,800.59 : 1,001,488.20 = 368,947.90 : x
  2. Step 2: Convert to fraction form
    668,800.59/1,001,488.20 = 368,947.90/x
  3. Step 3: Cross multiply
    668,800.59x = 1,001,488.20 × 368,947.90
  4. Step 4: Simplify right side
    668,800.59x = 369,496,968,264.78
  5. Step 5: Solve for x
    x = 369,496,968,264.78/668,800.59
  6. Step 6: Final answer
    x = 552,477.04

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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.