Home / 1,287,737.10-1,931,605.65-814,956.30

Finding the Fourth Proportional to 1,287,737.10, 1,931,605.65 and 814,956.30

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Solution

The fourth proportional to 1,287,737.10, 1,931,605.65 and 814,956.30 is: 1,222,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,737.10 : 1,931,605.65 = 814,956.30 : x
  2. Step 2: Convert to fraction form
    1,287,737.10/1,931,605.65 = 814,956.30/x
  3. Step 3: Cross multiply
    1,287,737.10x = 1,931,605.65 × 814,956.30
  4. Step 4: Simplify right side
    1,287,737.10x = 1,574,174,193,583.10
  5. Step 5: Solve for x
    x = 1,574,174,193,583.10/1,287,737.10
  6. Step 6: Final answer
    x = 1,222,434.45

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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.