Home / 675,065.30-1,011,237.15-421,567.70

Finding the Fourth Proportional to 675,065.30, 1,011,237.15 and 421,567.70

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Solution

The fourth proportional to 675,065.30, 1,011,237.15 and 421,567.70 is: 631,501.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,065.30 : 1,011,237.15 = 421,567.70 : x
  2. Step 2: Convert to fraction form
    675,065.30/1,011,237.15 = 421,567.70/x
  3. Step 3: Cross multiply
    675,065.30x = 1,011,237.15 × 421,567.70
  4. Step 4: Simplify right side
    675,065.30x = 426,304,919,480.06
  5. Step 5: Solve for x
    x = 426,304,919,480.06/675,065.30
  6. Step 6: Final answer
    x = 631,501.75

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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.