Home / 1,500,106.32-2,070,152.19-811,778.10

Finding the Fourth Proportional to 1,500,106.32, 2,070,152.19 and 811,778.10

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Solution

The fourth proportional to 1,500,106.32, 2,070,152.19 and 811,778.10 is: 1,120,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,106.32 : 2,070,152.19 = 811,778.10 : x
  2. Step 2: Convert to fraction form
    1,500,106.32/2,070,152.19 = 811,778.10/x
  3. Step 3: Cross multiply
    1,500,106.32x = 2,070,152.19 × 811,778.10
  4. Step 4: Simplify right side
    1,500,106.32x = 1,680,504,211,509.04
  5. Step 5: Solve for x
    x = 1,680,504,211,509.04/1,500,106.32
  6. Step 6: Final answer
    x = 1,120,256.74

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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.