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Finding the Fourth Proportional to 480,498.24, 662,268.79 and 439,774.32

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Solution

The fourth proportional to 480,498.24, 662,268.79 and 439,774.32 is: 606,139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,498.24 : 662,268.79 = 439,774.32 : x
  2. Step 2: Convert to fraction form
    480,498.24/662,268.79 = 439,774.32/x
  3. Step 3: Cross multiply
    480,498.24x = 662,268.79 × 439,774.32
  4. Step 4: Simplify right side
    480,498.24x = 291,248,806,779.47
  5. Step 5: Solve for x
    x = 291,248,806,779.47/480,498.24
  6. Step 6: Final answer
    x = 606,139.17

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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.