Home / 1,029,721.60-1,543,353.60-430,681.60

Finding the Fourth Proportional to 1,029,721.60, 1,543,353.60 and 430,681.60

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Solution

The fourth proportional to 1,029,721.60, 1,543,353.60 and 430,681.60 is: 645,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,721.60 : 1,543,353.60 = 430,681.60 : x
  2. Step 2: Convert to fraction form
    1,029,721.60/1,543,353.60 = 430,681.60/x
  3. Step 3: Cross multiply
    1,029,721.60x = 1,543,353.60 × 430,681.60
  4. Step 4: Simplify right side
    1,029,721.60x = 664,693,997,813.76
  5. Step 5: Solve for x
    x = 664,693,997,813.76/1,029,721.60
  6. Step 6: Final answer
    x = 645,508.45

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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.