Home / 709,341.90-1,064,142.45-288,660.30

Finding the Fourth Proportional to 709,341.90, 1,064,142.45 and 288,660.30

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Solution

The fourth proportional to 709,341.90, 1,064,142.45 and 288,660.30 is: 433,043.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,341.90 : 1,064,142.45 = 288,660.30 : x
  2. Step 2: Convert to fraction form
    709,341.90/1,064,142.45 = 288,660.30/x
  3. Step 3: Cross multiply
    709,341.90x = 1,064,142.45 × 288,660.30
  4. Step 4: Simplify right side
    709,341.90x = 307,175,678,859.74
  5. Step 5: Solve for x
    x = 307,175,678,859.74/709,341.90
  6. Step 6: Final answer
    x = 433,043.19

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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.