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Finding the Fourth Proportional to 480,503, 662,275.33 and 439,779.08

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Solution

The fourth proportional to 480,503, 662,275.33 and 439,779.08 is: 606,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,503 : 662,275.33 = 439,779.08 : x
  2. Step 2: Convert to fraction form
    480,503/662,275.33 = 439,779.08/x
  3. Step 3: Cross multiply
    480,503x = 662,275.33 × 439,779.08
  4. Step 4: Simplify right side
    480,503x = 291,254,835,334.10
  5. Step 5: Solve for x
    x = 291,254,835,334.10/480,503
  6. Step 6: Final answer
    x = 606,145.72

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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.