Home / 788,579.04-1,088,213.12-498,345.72

Finding the Fourth Proportional to 788,579.04, 1,088,213.12 and 498,345.72

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Solution

The fourth proportional to 788,579.04, 1,088,213.12 and 498,345.72 is: 687,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,579.04 : 1,088,213.12 = 498,345.72 : x
  2. Step 2: Convert to fraction form
    788,579.04/1,088,213.12 = 498,345.72/x
  3. Step 3: Cross multiply
    788,579.04x = 1,088,213.12 × 498,345.72
  4. Step 4: Simplify right side
    788,579.04x = 542,306,350,799.85
  5. Step 5: Solve for x
    x = 542,306,350,799.85/788,579.04
  6. Step 6: Final answer
    x = 687,700.69

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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.