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Finding the Fourth Proportional to 555,603.39, 766,714.68 and 310,581.63

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Solution

The fourth proportional to 555,603.39, 766,714.68 and 310,581.63 is: 428,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,603.39 : 766,714.68 = 310,581.63 : x
  2. Step 2: Convert to fraction form
    555,603.39/766,714.68 = 310,581.63/x
  3. Step 3: Cross multiply
    555,603.39x = 766,714.68 × 310,581.63
  4. Step 4: Simplify right side
    555,603.39x = 238,127,495,059.33
  5. Step 5: Solve for x
    x = 238,127,495,059.33/555,603.39
  6. Step 6: Final answer
    x = 428,592.59

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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.