Home / 861,492.38-1,289,981.30-607,397.40

Finding the Fourth Proportional to 861,492.38, 1,289,981.30 and 607,397.40

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Solution

The fourth proportional to 861,492.38, 1,289,981.30 and 607,397.40 is: 909,504.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,492.38 : 1,289,981.30 = 607,397.40 : x
  2. Step 2: Convert to fraction form
    861,492.38/1,289,981.30 = 607,397.40/x
  3. Step 3: Cross multiply
    861,492.38x = 1,289,981.30 × 607,397.40
  4. Step 4: Simplify right side
    861,492.38x = 783,531,284,631.63
  5. Step 5: Solve for x
    x = 783,531,284,631.63/861,492.38
  6. Step 6: Final answer
    x = 909,504.61

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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.