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Finding the Fourth Proportional to 662,886.40, 992,774.40 and 451,379.20

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Solution

The fourth proportional to 662,886.40, 992,774.40 and 451,379.20 is: 676,009.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,886.40 : 992,774.40 = 451,379.20 : x
  2. Step 2: Convert to fraction form
    662,886.40/992,774.40 = 451,379.20/x
  3. Step 3: Cross multiply
    662,886.40x = 992,774.40 × 451,379.20
  4. Step 4: Simplify right side
    662,886.40x = 448,117,714,452.48
  5. Step 5: Solve for x
    x = 448,117,714,452.48/662,886.40
  6. Step 6: Final answer
    x = 676,009.82

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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.