Home / 1,575,691.20-2,361,981.60-776,318.40

Finding the Fourth Proportional to 1,575,691.20, 2,361,981.60 and 776,318.40

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Solution

The fourth proportional to 1,575,691.20, 2,361,981.60 and 776,318.40 is: 1,163,711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575,691.20 : 2,361,981.60 = 776,318.40 : x
  2. Step 2: Convert to fraction form
    1,575,691.20/2,361,981.60 = 776,318.40/x
  3. Step 3: Cross multiply
    1,575,691.20x = 2,361,981.60 × 776,318.40
  4. Step 4: Simplify right side
    1,575,691.20x = 1,833,649,776,541.44
  5. Step 5: Solve for x
    x = 1,833,649,776,541.44/1,575,691.20
  6. Step 6: Final answer
    x = 1,163,711.38

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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.