Home / 885,425.67-1,221,734.88-498,187.35

Finding the Fourth Proportional to 885,425.67, 1,221,734.88 and 498,187.35

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Solution

The fourth proportional to 885,425.67, 1,221,734.88 and 498,187.35 is: 687,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,425.67 : 1,221,734.88 = 498,187.35 : x
  2. Step 2: Convert to fraction form
    885,425.67/1,221,734.88 = 498,187.35/x
  3. Step 3: Cross multiply
    885,425.67x = 1,221,734.88 × 498,187.35
  4. Step 4: Simplify right side
    885,425.67x = 608,652,862,269.77
  5. Step 5: Solve for x
    x = 608,652,862,269.77/885,425.67
  6. Step 6: Final answer
    x = 687,412.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.