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Finding the Fourth Proportional to 566,276.68, 781,478.25 and 308,170.28

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Solution

The fourth proportional to 566,276.68, 781,478.25 and 308,170.28 is: 425,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,276.68 : 781,478.25 = 308,170.28 : x
  2. Step 2: Convert to fraction form
    566,276.68/781,478.25 = 308,170.28/x
  3. Step 3: Cross multiply
    566,276.68x = 781,478.25 × 308,170.28
  4. Step 4: Simplify right side
    566,276.68x = 240,828,374,225.74
  5. Step 5: Solve for x
    x = 240,828,374,225.74/566,276.68
  6. Step 6: Final answer
    x = 425,283.93

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Double scale
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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.