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Finding the Fourth Proportional to 560,858.57, 773,980.78 and 306,209.76

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Solution

The fourth proportional to 560,858.57, 773,980.78 and 306,209.76 is: 422,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,858.57 : 773,980.78 = 306,209.76 : x
  2. Step 2: Convert to fraction form
    560,858.57/773,980.78 = 306,209.76/x
  3. Step 3: Cross multiply
    560,858.57x = 773,980.78 × 306,209.76
  4. Step 4: Simplify right side
    560,858.57x = 237,000,465,220.46
  5. Step 5: Solve for x
    x = 237,000,465,220.46/560,858.57
  6. Step 6: Final answer
    x = 422,567.25

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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.