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Finding the Fourth Proportional to 605,743.60, 908,615.40 and 369,547.60

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Solution

The fourth proportional to 605,743.60, 908,615.40 and 369,547.60 is: 554,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,743.60 : 908,615.40 = 369,547.60 : x
  2. Step 2: Convert to fraction form
    605,743.60/908,615.40 = 369,547.60/x
  3. Step 3: Cross multiply
    605,743.60x = 908,615.40 × 369,547.60
  4. Step 4: Simplify right side
    605,743.60x = 335,776,640,393.04
  5. Step 5: Solve for x
    x = 335,776,640,393.04/605,743.60
  6. Step 6: Final answer
    x = 554,321.40

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Double scale
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Similar ratio
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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.