Home / 828,603.40-1,242,905.10-473,653.30

Finding the Fourth Proportional to 828,603.40, 1,242,905.10 and 473,653.30

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Solution

The fourth proportional to 828,603.40, 1,242,905.10 and 473,653.30 is: 710,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,603.40 : 1,242,905.10 = 473,653.30 : x
  2. Step 2: Convert to fraction form
    828,603.40/1,242,905.10 = 473,653.30/x
  3. Step 3: Cross multiply
    828,603.40x = 1,242,905.10 × 473,653.30
  4. Step 4: Simplify right side
    828,603.40x = 588,706,102,201.83
  5. Step 5: Solve for x
    x = 588,706,102,201.83/828,603.40
  6. Step 6: Final answer
    x = 710,479.95

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Double scale
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Similar ratio
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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.