Home / 709,819.50-1,064,204.37-429,274.38

Finding the Fourth Proportional to 709,819.50, 1,064,204.37 and 429,274.38

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Solution

The fourth proportional to 709,819.50, 1,064,204.37 and 429,274.38 is: 643,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,819.50 : 1,064,204.37 = 429,274.38 : x
  2. Step 2: Convert to fraction form
    709,819.50/1,064,204.37 = 429,274.38/x
  3. Step 3: Cross multiply
    709,819.50x = 1,064,204.37 × 429,274.38
  4. Step 4: Simplify right side
    709,819.50x = 456,835,671,125.04
  5. Step 5: Solve for x
    x = 456,835,671,125.04/709,819.50
  6. Step 6: Final answer
    x = 643,594.14

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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.