Home / 2,538,681.56-3,808,031.24-645,423.20

Finding the Fourth Proportional to 2,538,681.56, 3,808,031.24 and 645,423.20

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Solution

The fourth proportional to 2,538,681.56, 3,808,031.24 and 645,423.20 is: 968,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538,681.56 : 3,808,031.24 = 645,423.20 : x
  2. Step 2: Convert to fraction form
    2,538,681.56/3,808,031.24 = 645,423.20/x
  3. Step 3: Cross multiply
    2,538,681.56x = 3,808,031.24 × 645,423.20
  4. Step 4: Simplify right side
    2,538,681.56x = 2,457,791,708,620.77
  5. Step 5: Solve for x
    x = 2,457,791,708,620.77/2,538,681.56
  6. Step 6: Final answer
    x = 968,137.06

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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.