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Finding the Fourth Proportional to 1,014.79, 1,400.36 and 572.73

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Solution

The fourth proportional to 1,014.79, 1,400.36 and 572.73 is: 790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.79 : 1,400.36 = 572.73 : x
  2. Step 2: Convert to fraction form
    1,014.79/1,400.36 = 572.73/x
  3. Step 3: Cross multiply
    1,014.79x = 1,400.36 × 572.73
  4. Step 4: Simplify right side
    1,014.79x = 802,024.01
  5. Step 5: Solve for x
    x = 802,024.01/1,014.79
  6. Step 6: Final answer
    x = 790.34

Related Problems

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Half scale
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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.