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Finding the Fourth Proportional to 536,721.93, 740,682 and 291,706.68

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Solution

The fourth proportional to 536,721.93, 740,682 and 291,706.68 is: 402,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,721.93 : 740,682 = 291,706.68 : x
  2. Step 2: Convert to fraction form
    536,721.93/740,682 = 291,706.68/x
  3. Step 3: Cross multiply
    536,721.93x = 740,682 × 291,706.68
  4. Step 4: Simplify right side
    536,721.93x = 216,061,887,155.76
  5. Step 5: Solve for x
    x = 216,061,887,155.76/536,721.93
  6. Step 6: Final answer
    x = 402,558.34

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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.