Home / 859,677.12-1,186,463.52-520,148.16

Finding the Fourth Proportional to 859,677.12, 1,186,463.52 and 520,148.16

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Solution

The fourth proportional to 859,677.12, 1,186,463.52 and 520,148.16 is: 717,870.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,677.12 : 1,186,463.52 = 520,148.16 : x
  2. Step 2: Convert to fraction form
    859,677.12/1,186,463.52 = 520,148.16/x
  3. Step 3: Cross multiply
    859,677.12x = 1,186,463.52 × 520,148.16
  4. Step 4: Simplify right side
    859,677.12x = 617,136,816,835.12
  5. Step 5: Solve for x
    x = 617,136,816,835.12/859,677.12
  6. Step 6: Final answer
    x = 717,870.47

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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.