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Finding the Fourth Proportional to 895.40, 1,235.73 and 497.10

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Solution

The fourth proportional to 895.40, 1,235.73 and 497.10 is: 686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.40 : 1,235.73 = 497.10 : x
  2. Step 2: Convert to fraction form
    895.40/1,235.73 = 497.10/x
  3. Step 3: Cross multiply
    895.40x = 1,235.73 × 497.10
  4. Step 4: Simplify right side
    895.40x = 614,281.38
  5. Step 5: Solve for x
    x = 614,281.38/895.40
  6. Step 6: Final answer
    x = 686.04

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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.