Home / 776,587.12-1,072,020.88-522,085.92

Finding the Fourth Proportional to 776,587.12, 1,072,020.88 and 522,085.92

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Solution

The fourth proportional to 776,587.12, 1,072,020.88 and 522,085.92 is: 720,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,587.12 : 1,072,020.88 = 522,085.92 : x
  2. Step 2: Convert to fraction form
    776,587.12/1,072,020.88 = 522,085.92/x
  3. Step 3: Cross multiply
    776,587.12x = 1,072,020.88 × 522,085.92
  4. Step 4: Simplify right side
    776,587.12x = 559,687,007,394.01
  5. Step 5: Solve for x
    x = 559,687,007,394.01/776,587.12
  6. Step 6: Final answer
    x = 720,700.86

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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.