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Finding the Fourth Proportional to 895.90, 1,341.45 and 525.40

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Solution

The fourth proportional to 895.90, 1,341.45 and 525.40 is: 786.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.90 : 1,341.45 = 525.40 : x
  2. Step 2: Convert to fraction form
    895.90/1,341.45 = 525.40/x
  3. Step 3: Cross multiply
    895.90x = 1,341.45 × 525.40
  4. Step 4: Simplify right side
    895.90x = 704,803.50
  5. Step 5: Solve for x
    x = 704,803.50/895.90
  6. Step 6: Final answer
    x = 786.70

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Double scale
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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.