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Finding the Fourth Proportional to 566,720.04, 782,074.80 and 312,071.70

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Solution

The fourth proportional to 566,720.04, 782,074.80 and 312,071.70 is: 430,659.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,720.04 : 782,074.80 = 312,071.70 : x
  2. Step 2: Convert to fraction form
    566,720.04/782,074.80 = 312,071.70/x
  3. Step 3: Cross multiply
    566,720.04x = 782,074.80 × 312,071.70
  4. Step 4: Simplify right side
    566,720.04x = 244,063,412,363.16
  5. Step 5: Solve for x
    x = 244,063,412,363.16/566,720.04
  6. Step 6: Final answer
    x = 430,659.58

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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.