Home / 900,734.20-1,243,003.98-498,329.08

Finding the Fourth Proportional to 900,734.20, 1,243,003.98 and 498,329.08

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Solution

The fourth proportional to 900,734.20, 1,243,003.98 and 498,329.08 is: 687,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,734.20 : 1,243,003.98 = 498,329.08 : x
  2. Step 2: Convert to fraction form
    900,734.20/1,243,003.98 = 498,329.08/x
  3. Step 3: Cross multiply
    900,734.20x = 1,243,003.98 × 498,329.08
  4. Step 4: Simplify right side
    900,734.20x = 619,425,029,789.74
  5. Step 5: Solve for x
    x = 619,425,029,789.74/900,734.20
  6. Step 6: Final answer
    x = 687,689.03

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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.