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Finding the Fourth Proportional to 1,045.30, 1,567.95 and 525.10

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Solution

The fourth proportional to 1,045.30, 1,567.95 and 525.10 is: 787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.30 : 1,567.95 = 525.10 : x
  2. Step 2: Convert to fraction form
    1,045.30/1,567.95 = 525.10/x
  3. Step 3: Cross multiply
    1,045.30x = 1,567.95 × 525.10
  4. Step 4: Simplify right side
    1,045.30x = 823,330.55
  5. Step 5: Solve for x
    x = 823,330.55/1,045.30
  6. Step 6: Final answer
    x = 787.65

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.