Home / 798,734.80-1,102,498.12-492,904.72

Finding the Fourth Proportional to 798,734.80, 1,102,498.12 and 492,904.72

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Solution

The fourth proportional to 798,734.80, 1,102,498.12 and 492,904.72 is: 680,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,734.80 : 1,102,498.12 = 492,904.72 : x
  2. Step 2: Convert to fraction form
    798,734.80/1,102,498.12 = 492,904.72/x
  3. Step 3: Cross multiply
    798,734.80x = 1,102,498.12 × 492,904.72
  4. Step 4: Simplify right side
    798,734.80x = 543,426,527,139.13
  5. Step 5: Solve for x
    x = 543,426,527,139.13/798,734.80
  6. Step 6: Final answer
    x = 680,359.15

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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.