Home / 975,989.76-1,457,341.25-861,180.78

Finding the Fourth Proportional to 975,989.76, 1,457,341.25 and 861,180.78

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Solution

The fourth proportional to 975,989.76, 1,457,341.25 and 861,180.78 is: 1,285,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,989.76 : 1,457,341.25 = 861,180.78 : x
  2. Step 2: Convert to fraction form
    975,989.76/1,457,341.25 = 861,180.78/x
  3. Step 3: Cross multiply
    975,989.76x = 1,457,341.25 × 861,180.78
  4. Step 4: Simplify right side
    975,989.76x = 1,255,034,270,095.27
  5. Step 5: Solve for x
    x = 1,255,034,270,095.27/975,989.76
  6. Step 6: Final answer
    x = 1,285,909.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.