Home / 1,177,046.20-1,762,070.10-778,137.40

Finding the Fourth Proportional to 1,177,046.20, 1,762,070.10 and 778,137.40

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Solution

The fourth proportional to 1,177,046.20, 1,762,070.10 and 778,137.40 is: 1,164,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,046.20 : 1,762,070.10 = 778,137.40 : x
  2. Step 2: Convert to fraction form
    1,177,046.20/1,762,070.10 = 778,137.40/x
  3. Step 3: Cross multiply
    1,177,046.20x = 1,762,070.10 × 778,137.40
  4. Step 4: Simplify right side
    1,177,046.20x = 1,371,132,646,231.74
  5. Step 5: Solve for x
    x = 1,371,132,646,231.74/1,177,046.20
  6. Step 6: Final answer
    x = 1,164,892.80

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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.