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Finding the Fourth Proportional to 826,635.76, 1,238,798.80 and 446,737.48

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Solution

The fourth proportional to 826,635.76, 1,238,798.80 and 446,737.48 is: 669,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,635.76 : 1,238,798.80 = 446,737.48 : x
  2. Step 2: Convert to fraction form
    826,635.76/1,238,798.80 = 446,737.48/x
  3. Step 3: Cross multiply
    826,635.76x = 1,238,798.80 × 446,737.48
  4. Step 4: Simplify right side
    826,635.76x = 553,417,854,139.02
  5. Step 5: Solve for x
    x = 553,417,854,139.02/826,635.76
  6. Step 6: Final answer
    x = 669,482.11

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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.