Home / 457,822.40-686,733.60-432,017.60

Finding the Fourth Proportional to 457,822.40, 686,733.60 and 432,017.60

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Solution

The fourth proportional to 457,822.40, 686,733.60 and 432,017.60 is: 648,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,822.40 : 686,733.60 = 432,017.60 : x
  2. Step 2: Convert to fraction form
    457,822.40/686,733.60 = 432,017.60/x
  3. Step 3: Cross multiply
    457,822.40x = 686,733.60 × 432,017.60
  4. Step 4: Simplify right side
    457,822.40x = 296,681,001,711.36
  5. Step 5: Solve for x
    x = 296,681,001,711.36/457,822.40
  6. Step 6: Final answer
    x = 648,026.40

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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.