Home / 1,124,044.60-1,686,066.90-840,609.40

Finding the Fourth Proportional to 1,124,044.60, 1,686,066.90 and 840,609.40

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Solution

The fourth proportional to 1,124,044.60, 1,686,066.90 and 840,609.40 is: 1,260,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,044.60 : 1,686,066.90 = 840,609.40 : x
  2. Step 2: Convert to fraction form
    1,124,044.60/1,686,066.90 = 840,609.40/x
  3. Step 3: Cross multiply
    1,124,044.60x = 1,686,066.90 × 840,609.40
  4. Step 4: Simplify right side
    1,124,044.60x = 1,417,323,685,168.86
  5. Step 5: Solve for x
    x = 1,417,323,685,168.86/1,124,044.60
  6. Step 6: Final answer
    x = 1,260,914.10

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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.