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Finding the Fourth Proportional to 795.78, 1,097.66 and 500.53

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Solution

The fourth proportional to 795.78, 1,097.66 and 500.53 is: 690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.78 : 1,097.66 = 500.53 : x
  2. Step 2: Convert to fraction form
    795.78/1,097.66 = 500.53/x
  3. Step 3: Cross multiply
    795.78x = 1,097.66 × 500.53
  4. Step 4: Simplify right side
    795.78x = 549,411.76
  5. Step 5: Solve for x
    x = 549,411.76/795.78
  6. Step 6: Final answer
    x = 690.41

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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.