Home / 786,111.54-1,084,872.40-442,055.78

Finding the Fourth Proportional to 786,111.54, 1,084,872.40 and 442,055.78

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Solution

The fourth proportional to 786,111.54, 1,084,872.40 and 442,055.78 is: 610,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,111.54 : 1,084,872.40 = 442,055.78 : x
  2. Step 2: Convert to fraction form
    786,111.54/1,084,872.40 = 442,055.78/x
  3. Step 3: Cross multiply
    786,111.54x = 1,084,872.40 × 442,055.78
  4. Step 4: Simplify right side
    786,111.54x = 479,574,108,452.97
  5. Step 5: Solve for x
    x = 479,574,108,452.97/786,111.54
  6. Step 6: Final answer
    x = 610,058.60

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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.