Home / 1,615,470-2,229,364.08-890,344.32

Finding the Fourth Proportional to 1,615,470, 2,229,364.08 and 890,344.32

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Solution

The fourth proportional to 1,615,470, 2,229,364.08 and 890,344.32 is: 1,228,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,470 : 2,229,364.08 = 890,344.32 : x
  2. Step 2: Convert to fraction form
    1,615,470/2,229,364.08 = 890,344.32/x
  3. Step 3: Cross multiply
    1,615,470x = 2,229,364.08 × 890,344.32
  4. Step 4: Simplify right side
    1,615,470x = 1,984,901,645,840.03
  5. Step 5: Solve for x
    x = 1,984,901,645,840.03/1,615,470
  6. Step 6: Final answer
    x = 1,228,683.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.