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Finding the Fourth Proportional to 545.66, 812.66 and 526.52

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Solution

The fourth proportional to 545.66, 812.66 and 526.52 is: 784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.66 : 812.66 = 526.52 : x
  2. Step 2: Convert to fraction form
    545.66/812.66 = 526.52/x
  3. Step 3: Cross multiply
    545.66x = 812.66 × 526.52
  4. Step 4: Simplify right side
    545.66x = 427,881.74
  5. Step 5: Solve for x
    x = 427,881.74/545.66
  6. Step 6: Final answer
    x = 784.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.