Home / 807,639.30-1,211,458.95-492,711.30

Finding the Fourth Proportional to 807,639.30, 1,211,458.95 and 492,711.30

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Solution

The fourth proportional to 807,639.30, 1,211,458.95 and 492,711.30 is: 739,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,639.30 : 1,211,458.95 = 492,711.30 : x
  2. Step 2: Convert to fraction form
    807,639.30/1,211,458.95 = 492,711.30/x
  3. Step 3: Cross multiply
    807,639.30x = 1,211,458.95 × 492,711.30
  4. Step 4: Simplify right side
    807,639.30x = 596,899,514,151.14
  5. Step 5: Solve for x
    x = 596,899,514,151.14/807,639.30
  6. Step 6: Final answer
    x = 739,066.95

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1.5x scale

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.