Home / 936,575.40-1,400,715.90-787,276.20

Finding the Fourth Proportional to 936,575.40, 1,400,715.90 and 787,276.20

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Solution

The fourth proportional to 936,575.40, 1,400,715.90 and 787,276.20 is: 1,177,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,575.40 : 1,400,715.90 = 787,276.20 : x
  2. Step 2: Convert to fraction form
    936,575.40/1,400,715.90 = 787,276.20/x
  3. Step 3: Cross multiply
    936,575.40x = 1,400,715.90 × 787,276.20
  4. Step 4: Simplify right side
    936,575.40x = 1,102,750,291,031.58
  5. Step 5: Solve for x
    x = 1,102,750,291,031.58/936,575.40
  6. Step 6: Final answer
    x = 1,177,428.20

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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.