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Finding the Fourth Proportional to 605,619.60, 906,679.80 and 369,423.60

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Solution

The fourth proportional to 605,619.60, 906,679.80 and 369,423.60 is: 553,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,619.60 : 906,679.80 = 369,423.60 : x
  2. Step 2: Convert to fraction form
    605,619.60/906,679.80 = 369,423.60/x
  3. Step 3: Cross multiply
    605,619.60x = 906,679.80 × 369,423.60
  4. Step 4: Simplify right side
    605,619.60x = 334,948,915,763.28
  5. Step 5: Solve for x
    x = 334,948,915,763.28/605,619.60
  6. Step 6: Final answer
    x = 553,068.16

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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.