Home / 1,310,289.60-1,963,775.20-636,525.12

Finding the Fourth Proportional to 1,310,289.60, 1,963,775.20 and 636,525.12

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Solution

The fourth proportional to 1,310,289.60, 1,963,775.20 and 636,525.12 is: 953,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,289.60 : 1,963,775.20 = 636,525.12 : x
  2. Step 2: Convert to fraction form
    1,310,289.60/1,963,775.20 = 636,525.12/x
  3. Step 3: Cross multiply
    1,310,289.60x = 1,963,775.20 × 636,525.12
  4. Step 4: Simplify right side
    1,310,289.60x = 1,249,992,244,833.02
  5. Step 5: Solve for x
    x = 1,249,992,244,833.02/1,310,289.60
  6. Step 6: Final answer
    x = 953,981.66

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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.