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Finding the Fourth Proportional to 559,702.51, 772,098.48 and 355,403.90

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Solution

The fourth proportional to 559,702.51, 772,098.48 and 355,403.90 is: 490,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,702.51 : 772,098.48 = 355,403.90 : x
  2. Step 2: Convert to fraction form
    559,702.51/772,098.48 = 355,403.90/x
  3. Step 3: Cross multiply
    559,702.51x = 772,098.48 × 355,403.90
  4. Step 4: Simplify right side
    559,702.51x = 274,406,812,906.32
  5. Step 5: Solve for x
    x = 274,406,812,906.32/559,702.51
  6. Step 6: Final answer
    x = 490,272.62

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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.