Home / 687,594.09-1,031,602.30-328,223.52

Finding the Fourth Proportional to 687,594.09, 1,031,602.30 and 328,223.52

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Solution

The fourth proportional to 687,594.09, 1,031,602.30 and 328,223.52 is: 492,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,594.09 : 1,031,602.30 = 328,223.52 : x
  2. Step 2: Convert to fraction form
    687,594.09/1,031,602.30 = 328,223.52/x
  3. Step 3: Cross multiply
    687,594.09x = 1,031,602.30 × 328,223.52
  4. Step 4: Simplify right side
    687,594.09x = 338,596,138,146.10
  5. Step 5: Solve for x
    x = 338,596,138,146.10/687,594.09
  6. Step 6: Final answer
    x = 492,436.08

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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.