Home / 1,121,130.40-1,681,695.60-784,551.10

Finding the Fourth Proportional to 1,121,130.40, 1,681,695.60 and 784,551.10

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Solution

The fourth proportional to 1,121,130.40, 1,681,695.60 and 784,551.10 is: 1,176,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,130.40 : 1,681,695.60 = 784,551.10 : x
  2. Step 2: Convert to fraction form
    1,121,130.40/1,681,695.60 = 784,551.10/x
  3. Step 3: Cross multiply
    1,121,130.40x = 1,681,695.60 × 784,551.10
  4. Step 4: Simplify right side
    1,121,130.40x = 1,319,376,132,845.16
  5. Step 5: Solve for x
    x = 1,319,376,132,845.16/1,121,130.40
  6. Step 6: Final answer
    x = 1,176,826.65

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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.