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Finding the Fourth Proportional to 488,271.60, 732,407.40 and 299,314.80

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Solution

The fourth proportional to 488,271.60, 732,407.40 and 299,314.80 is: 448,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,271.60 : 732,407.40 = 299,314.80 : x
  2. Step 2: Convert to fraction form
    488,271.60/732,407.40 = 299,314.80/x
  3. Step 3: Cross multiply
    488,271.60x = 732,407.40 × 299,314.80
  4. Step 4: Simplify right side
    488,271.60x = 219,220,374,449.52
  5. Step 5: Solve for x
    x = 219,220,374,449.52/488,271.60
  6. Step 6: Final answer
    x = 448,972.20

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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.