Home / 778,640.40-1,169,710.20-748,897.20

Finding the Fourth Proportional to 778,640.40, 1,169,710.20 and 748,897.20

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Solution

The fourth proportional to 778,640.40, 1,169,710.20 and 748,897.20 is: 1,125,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,640.40 : 1,169,710.20 = 748,897.20 : x
  2. Step 2: Convert to fraction form
    778,640.40/1,169,710.20 = 748,897.20/x
  3. Step 3: Cross multiply
    778,640.40x = 1,169,710.20 × 748,897.20
  4. Step 4: Simplify right side
    778,640.40x = 875,992,693,591.44
  5. Step 5: Solve for x
    x = 875,992,693,591.44/778,640.40
  6. Step 6: Final answer
    x = 1,125,028.57

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1.5x scale

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.