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Finding the Fourth Proportional to 575,756.45, 862,478.07 and 286,697.25

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Solution

The fourth proportional to 575,756.45, 862,478.07 and 286,697.25 is: 429,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,756.45 : 862,478.07 = 286,697.25 : x
  2. Step 2: Convert to fraction form
    575,756.45/862,478.07 = 286,697.25/x
  3. Step 3: Cross multiply
    575,756.45x = 862,478.07 × 286,697.25
  4. Step 4: Simplify right side
    575,756.45x = 247,270,090,854.31
  5. Step 5: Solve for x
    x = 247,270,090,854.31/575,756.45
  6. Step 6: Final answer
    x = 429,469.94

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Double scale
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Similar ratio
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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.