Home / 687,596.16-1,031,605.40-328,225.59

Finding the Fourth Proportional to 687,596.16, 1,031,605.40 and 328,225.59

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Solution

The fourth proportional to 687,596.16, 1,031,605.40 and 328,225.59 is: 492,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,596.16 : 1,031,605.40 = 328,225.59 : x
  2. Step 2: Convert to fraction form
    687,596.16/1,031,605.40 = 328,225.59/x
  3. Step 3: Cross multiply
    687,596.16x = 1,031,605.40 × 328,225.59
  4. Step 4: Simplify right side
    687,596.16x = 338,599,291,062.19
  5. Step 5: Solve for x
    x = 338,599,291,062.19/687,596.16
  6. Step 6: Final answer
    x = 492,439.18

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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.