Home / 778,541.40-1,167,812.10-458,364.60

Finding the Fourth Proportional to 778,541.40, 1,167,812.10 and 458,364.60

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Solution

The fourth proportional to 778,541.40, 1,167,812.10 and 458,364.60 is: 687,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,541.40 : 1,167,812.10 = 458,364.60 : x
  2. Step 2: Convert to fraction form
    778,541.40/1,167,812.10 = 458,364.60/x
  3. Step 3: Cross multiply
    778,541.40x = 1,167,812.10 × 458,364.60
  4. Step 4: Simplify right side
    778,541.40x = 535,283,726,091.66
  5. Step 5: Solve for x
    x = 535,283,726,091.66/778,541.40
  6. Step 6: Final answer
    x = 687,546.90

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1.5x scale

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.