Home / 641,303.10-961,320.15-303,750.45

Finding the Fourth Proportional to 641,303.10, 961,320.15 and 303,750.45

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Solution

The fourth proportional to 641,303.10, 961,320.15 and 303,750.45 is: 455,325.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,303.10 : 961,320.15 = 303,750.45 : x
  2. Step 2: Convert to fraction form
    641,303.10/961,320.15 = 303,750.45/x
  3. Step 3: Cross multiply
    641,303.10x = 961,320.15 × 303,750.45
  4. Step 4: Simplify right side
    641,303.10x = 292,001,428,156.57
  5. Step 5: Solve for x
    x = 292,001,428,156.57/641,303.10
  6. Step 6: Final answer
    x = 455,325.15

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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.