Home / 1,615,619.20-2,423,428.80-478,422.40

Finding the Fourth Proportional to 1,615,619.20, 2,423,428.80 and 478,422.40

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Solution

The fourth proportional to 1,615,619.20, 2,423,428.80 and 478,422.40 is: 717,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,619.20 : 2,423,428.80 = 478,422.40 : x
  2. Step 2: Convert to fraction form
    1,615,619.20/2,423,428.80 = 478,422.40/x
  3. Step 3: Cross multiply
    1,615,619.20x = 2,423,428.80 × 478,422.40
  4. Step 4: Simplify right side
    1,615,619.20x = 1,159,422,622,725.12
  5. Step 5: Solve for x
    x = 1,159,422,622,725.12/1,615,619.20
  6. Step 6: Final answer
    x = 717,633.60

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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.