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Finding the Fourth Proportional to 653.49, 901.53 and 404.91

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Solution

The fourth proportional to 653.49, 901.53 and 404.91 is: 558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.49 : 901.53 = 404.91 : x
  2. Step 2: Convert to fraction form
    653.49/901.53 = 404.91/x
  3. Step 3: Cross multiply
    653.49x = 901.53 × 404.91
  4. Step 4: Simplify right side
    653.49x = 365,038.51
  5. Step 5: Solve for x
    x = 365,038.51/653.49
  6. Step 6: Final answer
    x = 558.60

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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.