Home / 778,641.40-1,169,711.70-748,898.20

Finding the Fourth Proportional to 778,641.40, 1,169,711.70 and 748,898.20

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Solution

The fourth proportional to 778,641.40, 1,169,711.70 and 748,898.20 is: 1,125,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,641.40 : 1,169,711.70 = 748,898.20 : x
  2. Step 2: Convert to fraction form
    778,641.40/1,169,711.70 = 748,898.20/x
  3. Step 3: Cross multiply
    778,641.40x = 1,169,711.70 × 748,898.20
  4. Step 4: Simplify right side
    778,641.40x = 875,994,986,648.94
  5. Step 5: Solve for x
    x = 875,994,986,648.94/778,641.40
  6. Step 6: Final answer
    x = 1,125,030.07

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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.