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Finding the Fourth Proportional to 747.63, 1,030.95 and 590.00

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Solution

The fourth proportional to 747.63, 1,030.95 and 590.00 is: 813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    747.63 : 1,030.95 = 590.00 : x
  2. Step 2: Convert to fraction form
    747.63/1,030.95 = 590.00/x
  3. Step 3: Cross multiply
    747.63x = 1,030.95 × 590.00
  4. Step 4: Simplify right side
    747.63x = 608,255.35
  5. Step 5: Solve for x
    x = 608,255.35/747.63
  6. Step 6: Final answer
    x = 813.58

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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.