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Finding the Fourth Proportional to 344,547.60, 515,946.60 and 328,801.20

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Solution

The fourth proportional to 344,547.60, 515,946.60 and 328,801.20 is: 492,366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,547.60 : 515,946.60 = 328,801.20 : x
  2. Step 2: Convert to fraction form
    344,547.60/515,946.60 = 328,801.20/x
  3. Step 3: Cross multiply
    344,547.60x = 515,946.60 × 328,801.20
  4. Step 4: Simplify right side
    344,547.60x = 169,643,861,215.92
  5. Step 5: Solve for x
    x = 169,643,861,215.92/344,547.60
  6. Step 6: Final answer
    x = 492,366.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.