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Finding the Fourth Proportional to 460.04, 686.05 and 434.48

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Solution

The fourth proportional to 460.04, 686.05 and 434.48 is: 647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.04 : 686.05 = 434.48 : x
  2. Step 2: Convert to fraction form
    460.04/686.05 = 434.48/x
  3. Step 3: Cross multiply
    460.04x = 686.05 × 434.48
  4. Step 4: Simplify right side
    460.04x = 298,075.00
  5. Step 5: Solve for x
    x = 298,075.00/460.04
  6. Step 6: Final answer
    x = 647.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.