Home / 876,010.60-1,316,780.70-809,655.40

Finding the Fourth Proportional to 876,010.60, 1,316,780.70 and 809,655.40

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Solution

The fourth proportional to 876,010.60, 1,316,780.70 and 809,655.40 is: 1,217,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,010.60 : 1,316,780.70 = 809,655.40 : x
  2. Step 2: Convert to fraction form
    876,010.60/1,316,780.70 = 809,655.40/x
  3. Step 3: Cross multiply
    876,010.60x = 1,316,780.70 × 809,655.40
  4. Step 4: Simplify right side
    876,010.60x = 1,066,138,604,370.78
  5. Step 5: Solve for x
    x = 1,066,138,604,370.78/876,010.60
  6. Step 6: Final answer
    x = 1,217,038.47

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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.