Home / 728,880.48-1,005,421.98-567,479.88

Finding the Fourth Proportional to 728,880.48, 1,005,421.98 and 567,479.88

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Solution

The fourth proportional to 728,880.48, 1,005,421.98 and 567,479.88 is: 782,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,880.48 : 1,005,421.98 = 567,479.88 : x
  2. Step 2: Convert to fraction form
    728,880.48/1,005,421.98 = 567,479.88/x
  3. Step 3: Cross multiply
    728,880.48x = 1,005,421.98 × 567,479.88
  4. Step 4: Simplify right side
    728,880.48x = 570,556,744,559.76
  5. Step 5: Solve for x
    x = 570,556,744,559.76/728,880.48
  6. Step 6: Final answer
    x = 782,785.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.