Home / 1,313,691.90-1,812,897.42-710,079.90

Finding the Fourth Proportional to 1,313,691.90, 1,812,897.42 and 710,079.90

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Solution

The fourth proportional to 1,313,691.90, 1,812,897.42 and 710,079.90 is: 979,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,691.90 : 1,812,897.42 = 710,079.90 : x
  2. Step 2: Convert to fraction form
    1,313,691.90/1,812,897.42 = 710,079.90/x
  3. Step 3: Cross multiply
    1,313,691.90x = 1,812,897.42 × 710,079.90
  4. Step 4: Simplify right side
    1,313,691.90x = 1,287,302,018,703.86
  5. Step 5: Solve for x
    x = 1,287,302,018,703.86/1,313,691.90
  6. Step 6: Final answer
    x = 979,911.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.