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Finding the Fourth Proportional to 893,442.40, 1,341,200.40 and 538,856.80

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Solution

The fourth proportional to 893,442.40, 1,341,200.40 and 538,856.80 is: 808,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,442.40 : 1,341,200.40 = 538,856.80 : x
  2. Step 2: Convert to fraction form
    893,442.40/1,341,200.40 = 538,856.80/x
  3. Step 3: Cross multiply
    893,442.40x = 1,341,200.40 × 538,856.80
  4. Step 4: Simplify right side
    893,442.40x = 722,714,955,702.72
  5. Step 5: Solve for x
    x = 722,714,955,702.72/893,442.40
  6. Step 6: Final answer
    x = 808,910.52

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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.