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Finding the Fourth Proportional to 704,549.30, 972,968.25 and 487,314.26

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Solution

The fourth proportional to 704,549.30, 972,968.25 and 487,314.26 is: 672,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,549.30 : 972,968.25 = 487,314.26 : x
  2. Step 2: Convert to fraction form
    704,549.30/972,968.25 = 487,314.26/x
  3. Step 3: Cross multiply
    704,549.30x = 972,968.25 × 487,314.26
  4. Step 4: Simplify right side
    704,549.30x = 474,141,302,752.25
  5. Step 5: Solve for x
    x = 474,141,302,752.25/704,549.30
  6. Step 6: Final answer
    x = 672,971.08

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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.