Home / 875,853.16-1,312,063.90-780,641.64

Finding the Fourth Proportional to 875,853.16, 1,312,063.90 and 780,641.64

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Solution

The fourth proportional to 875,853.16, 1,312,063.90 and 780,641.64 is: 1,169,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,853.16 : 1,312,063.90 = 780,641.64 : x
  2. Step 2: Convert to fraction form
    875,853.16/1,312,063.90 = 780,641.64/x
  3. Step 3: Cross multiply
    875,853.16x = 1,312,063.90 × 780,641.64
  4. Step 4: Simplify right side
    875,853.16x = 1,024,251,714,680.80
  5. Step 5: Solve for x
    x = 1,024,251,714,680.80/875,853.16
  6. Step 6: Final answer
    x = 1,169,433.14

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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.