Home / 803,755.60-1,207,015.80-778,872.40

Finding the Fourth Proportional to 803,755.60, 1,207,015.80 and 778,872.40

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Solution

The fourth proportional to 803,755.60, 1,207,015.80 and 778,872.40 is: 1,169,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,755.60 : 1,207,015.80 = 778,872.40 : x
  2. Step 2: Convert to fraction form
    803,755.60/1,207,015.80 = 778,872.40/x
  3. Step 3: Cross multiply
    803,755.60x = 1,207,015.80 × 778,872.40
  4. Step 4: Simplify right side
    803,755.60x = 940,111,292,983.92
  5. Step 5: Solve for x
    x = 940,111,292,983.92/803,755.60
  6. Step 6: Final answer
    x = 1,169,648.20

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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.