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Finding the Fourth Proportional to 553,018.59, 762,758.21 and 417,058.27

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Solution

The fourth proportional to 553,018.59, 762,758.21 and 417,058.27 is: 575,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,018.59 : 762,758.21 = 417,058.27 : x
  2. Step 2: Convert to fraction form
    553,018.59/762,758.21 = 417,058.27/x
  3. Step 3: Cross multiply
    553,018.59x = 762,758.21 × 417,058.27
  4. Step 4: Simplify right side
    553,018.59x = 318,114,619,490.90
  5. Step 5: Solve for x
    x = 318,114,619,490.90/553,018.59
  6. Step 6: Final answer
    x = 575,233.14

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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.