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Finding the Fourth Proportional to 617,827.20, 926,740.80 and 368,995.20

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Solution

The fourth proportional to 617,827.20, 926,740.80 and 368,995.20 is: 553,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,827.20 : 926,740.80 = 368,995.20 : x
  2. Step 2: Convert to fraction form
    617,827.20/926,740.80 = 368,995.20/x
  3. Step 3: Cross multiply
    617,827.20x = 926,740.80 × 368,995.20
  4. Step 4: Simplify right side
    617,827.20x = 341,962,906,844.16
  5. Step 5: Solve for x
    x = 341,962,906,844.16/617,827.20
  6. Step 6: Final answer
    x = 553,492.80

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1.5x scale

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.