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Finding the Fourth Proportional to 704,550.30, 972,969.63 and 487,315.26

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Solution

The fourth proportional to 704,550.30, 972,969.63 and 487,315.26 is: 672,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,550.30 : 972,969.63 = 487,315.26 : x
  2. Step 2: Convert to fraction form
    704,550.30/972,969.63 = 487,315.26/x
  3. Step 3: Cross multiply
    704,550.30x = 972,969.63 × 487,315.26
  4. Step 4: Simplify right side
    704,550.30x = 474,142,948,215.55
  5. Step 5: Solve for x
    x = 474,142,948,215.55/704,550.30
  6. Step 6: Final answer
    x = 672,972.46

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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.