Home / 1,121,164.40-1,681,746.60-784,585.10

Finding the Fourth Proportional to 1,121,164.40, 1,681,746.60 and 784,585.10

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Solution

The fourth proportional to 1,121,164.40, 1,681,746.60 and 784,585.10 is: 1,176,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,164.40 : 1,681,746.60 = 784,585.10 : x
  2. Step 2: Convert to fraction form
    1,121,164.40/1,681,746.60 = 784,585.10/x
  3. Step 3: Cross multiply
    1,121,164.40x = 1,681,746.60 × 784,585.10
  4. Step 4: Simplify right side
    1,121,164.40x = 1,319,473,324,335.66
  5. Step 5: Solve for x
    x = 1,319,473,324,335.66/1,121,164.40
  6. Step 6: Final answer
    x = 1,176,877.65

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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.