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Finding the Fourth Proportional to 555,490.64, 766,624.28 and 313,817.57

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Solution

The fourth proportional to 555,490.64, 766,624.28 and 313,817.57 is: 433,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,490.64 : 766,624.28 = 313,817.57 : x
  2. Step 2: Convert to fraction form
    555,490.64/766,624.28 = 313,817.57/x
  3. Step 3: Cross multiply
    555,490.64x = 766,624.28 × 313,817.57
  4. Step 4: Simplify right side
    555,490.64x = 240,580,168,652.60
  5. Step 5: Solve for x
    x = 240,580,168,652.60/555,490.64
  6. Step 6: Final answer
    x = 433,094.91

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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.