Home / 876,009.60-1,316,779.20-809,654.40

Finding the Fourth Proportional to 876,009.60, 1,316,779.20 and 809,654.40

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Solution

The fourth proportional to 876,009.60, 1,316,779.20 and 809,654.40 is: 1,217,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,009.60 : 1,316,779.20 = 809,654.40 : x
  2. Step 2: Convert to fraction form
    876,009.60/1,316,779.20 = 809,654.40/x
  3. Step 3: Cross multiply
    876,009.60x = 1,316,779.20 × 809,654.40
  4. Step 4: Simplify right side
    876,009.60x = 1,066,136,073,108.48
  5. Step 5: Solve for x
    x = 1,066,136,073,108.48/876,009.60
  6. Step 6: Final answer
    x = 1,217,036.97

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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.