Home / 778,902.40-1,168,353.60-740,411.20

Finding the Fourth Proportional to 778,902.40, 1,168,353.60 and 740,411.20

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Solution

The fourth proportional to 778,902.40, 1,168,353.60 and 740,411.20 is: 1,110,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,902.40 : 1,168,353.60 = 740,411.20 : x
  2. Step 2: Convert to fraction form
    778,902.40/1,168,353.60 = 740,411.20/x
  3. Step 3: Cross multiply
    778,902.40x = 1,168,353.60 × 740,411.20
  4. Step 4: Simplify right side
    778,902.40x = 865,062,091,000.32
  5. Step 5: Solve for x
    x = 865,062,091,000.32/778,902.40
  6. Step 6: Final answer
    x = 1,110,616.80

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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.