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Finding the Fourth Proportional to 841, 1,160.74 and 473

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Solution

The fourth proportional to 841, 1,160.74 and 473 is: 652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    841 : 1,160.74 = 473 : x
  2. Step 2: Convert to fraction form
    841/1,160.74 = 473/x
  3. Step 3: Cross multiply
    841x = 1,160.74 × 473
  4. Step 4: Simplify right side
    841x = 549,030.02
  5. Step 5: Solve for x
    x = 549,030.02/841
  6. Step 6: Final answer
    x = 652.83

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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.