Home / 820,417.65-1,132,146.83-514,658.66

Finding the Fourth Proportional to 820,417.65, 1,132,146.83 and 514,658.66

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Solution

The fourth proportional to 820,417.65, 1,132,146.83 and 514,658.66 is: 710,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,417.65 : 1,132,146.83 = 514,658.66 : x
  2. Step 2: Convert to fraction form
    820,417.65/1,132,146.83 = 514,658.66/x
  3. Step 3: Cross multiply
    820,417.65x = 1,132,146.83 × 514,658.66
  4. Step 4: Simplify right side
    820,417.65x = 582,669,162,217.02
  5. Step 5: Solve for x
    x = 582,669,162,217.02/820,417.65
  6. Step 6: Final answer
    x = 710,210.42

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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.