Home / 840,718.90-1,160,220.09-458,766.64

Finding the Fourth Proportional to 840,718.90, 1,160,220.09 and 458,766.64

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Solution

The fourth proportional to 840,718.90, 1,160,220.09 and 458,766.64 is: 633,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,718.90 : 1,160,220.09 = 458,766.64 : x
  2. Step 2: Convert to fraction form
    840,718.90/1,160,220.09 = 458,766.64/x
  3. Step 3: Cross multiply
    840,718.90x = 1,160,220.09 × 458,766.64
  4. Step 4: Simplify right side
    840,718.90x = 532,270,272,349.80
  5. Step 5: Solve for x
    x = 532,270,272,349.80/840,718.90
  6. Step 6: Final answer
    x = 633,113.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.