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Finding the Fourth Proportional to 584,019.25, 805,946.75 and 315,747.25

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Solution

The fourth proportional to 584,019.25, 805,946.75 and 315,747.25 is: 435,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,019.25 : 805,946.75 = 315,747.25 : x
  2. Step 2: Convert to fraction form
    584,019.25/805,946.75 = 315,747.25/x
  3. Step 3: Cross multiply
    584,019.25x = 805,946.75 × 315,747.25
  4. Step 4: Simplify right side
    584,019.25x = 254,475,468,380.20
  5. Step 5: Solve for x
    x = 254,475,468,380.20/584,019.25
  6. Step 6: Final answer
    x = 435,731.30

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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.