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Finding the Fourth Proportional to 617,870.40, 926,805.60 and 493,454.40

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Solution

The fourth proportional to 617,870.40, 926,805.60 and 493,454.40 is: 740,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,870.40 : 926,805.60 = 493,454.40 : x
  2. Step 2: Convert to fraction form
    617,870.40/926,805.60 = 493,454.40/x
  3. Step 3: Cross multiply
    617,870.40x = 926,805.60 × 493,454.40
  4. Step 4: Simplify right side
    617,870.40x = 457,336,301,264.64
  5. Step 5: Solve for x
    x = 457,336,301,264.64/617,870.40
  6. Step 6: Final answer
    x = 740,181.60

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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.