Home / 1,137,112.12-1,569,218.07-620,870.50

Finding the Fourth Proportional to 1,137,112.12, 1,569,218.07 and 620,870.50

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Solution

The fourth proportional to 1,137,112.12, 1,569,218.07 and 620,870.50 is: 856,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,112.12 : 1,569,218.07 = 620,870.50 : x
  2. Step 2: Convert to fraction form
    1,137,112.12/1,569,218.07 = 620,870.50/x
  3. Step 3: Cross multiply
    1,137,112.12x = 1,569,218.07 × 620,870.50
  4. Step 4: Simplify right side
    1,137,112.12x = 974,281,207,729.94
  5. Step 5: Solve for x
    x = 974,281,207,729.94/1,137,112.12
  6. Step 6: Final answer
    x = 856,803.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.