Home / 778,085.10-1,167,128.13-245,660.46

Finding the Fourth Proportional to 778,085.10, 1,167,128.13 and 245,660.46

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Solution

The fourth proportional to 778,085.10, 1,167,128.13 and 245,660.46 is: 368,490.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,085.10 : 1,167,128.13 = 245,660.46 : x
  2. Step 2: Convert to fraction form
    778,085.10/1,167,128.13 = 245,660.46/x
  3. Step 3: Cross multiply
    778,085.10x = 1,167,128.13 × 245,660.46
  4. Step 4: Simplify right side
    778,085.10x = 286,717,233,294.74
  5. Step 5: Solve for x
    x = 286,717,233,294.74/778,085.10
  6. Step 6: Final answer
    x = 368,490.84

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Double scale
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Similar ratio
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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.