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Finding the Fourth Proportional to 501,557.35, 692,149.11 and 286,702.03

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Solution

The fourth proportional to 501,557.35, 692,149.11 and 286,702.03 is: 395,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,557.35 : 692,149.11 = 286,702.03 : x
  2. Step 2: Convert to fraction form
    501,557.35/692,149.11 = 286,702.03/x
  3. Step 3: Cross multiply
    501,557.35x = 692,149.11 × 286,702.03
  4. Step 4: Simplify right side
    501,557.35x = 198,440,554,899.69
  5. Step 5: Solve for x
    x = 198,440,554,899.69/501,557.35
  6. Step 6: Final answer
    x = 395,648.78

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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.