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Finding the Fourth Proportional to 417,852.80, 626,779.20 and 283,133.60

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Solution

The fourth proportional to 417,852.80, 626,779.20 and 283,133.60 is: 424,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,852.80 : 626,779.20 = 283,133.60 : x
  2. Step 2: Convert to fraction form
    417,852.80/626,779.20 = 283,133.60/x
  3. Step 3: Cross multiply
    417,852.80x = 626,779.20 × 283,133.60
  4. Step 4: Simplify right side
    417,852.80x = 177,462,251,301.12
  5. Step 5: Solve for x
    x = 177,462,251,301.12/417,852.80
  6. Step 6: Final answer
    x = 424,700.40

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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.