Home / 688,144.12-1,032,554.36-309,332.48

Finding the Fourth Proportional to 688,144.12, 1,032,554.36 and 309,332.48

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Solution

The fourth proportional to 688,144.12, 1,032,554.36 and 309,332.48 is: 464,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,144.12 : 1,032,554.36 = 309,332.48 : x
  2. Step 2: Convert to fraction form
    688,144.12/1,032,554.36 = 309,332.48/x
  3. Step 3: Cross multiply
    688,144.12x = 1,032,554.36 × 309,332.48
  4. Step 4: Simplify right side
    688,144.12x = 319,402,600,913.61
  5. Step 5: Solve for x
    x = 319,402,600,913.61/688,144.12
  6. Step 6: Final answer
    x = 464,150.74

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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.