Home / 1,488,065.60-2,232,616.80-647,220.80

Finding the Fourth Proportional to 1,488,065.60, 2,232,616.80 and 647,220.80

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Solution

The fourth proportional to 1,488,065.60, 2,232,616.80 and 647,220.80 is: 971,056.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,065.60 : 2,232,616.80 = 647,220.80 : x
  2. Step 2: Convert to fraction form
    1,488,065.60/2,232,616.80 = 647,220.80/x
  3. Step 3: Cross multiply
    1,488,065.60x = 2,232,616.80 × 647,220.80
  4. Step 4: Simplify right side
    1,488,065.60x = 1,444,996,031,389.44
  5. Step 5: Solve for x
    x = 1,444,996,031,389.44/1,488,065.60
  6. Step 6: Final answer
    x = 971,056.67

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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.