Home / 879,223.80-1,318,835.70-435,934.20

Finding the Fourth Proportional to 879,223.80, 1,318,835.70 and 435,934.20

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Solution

The fourth proportional to 879,223.80, 1,318,835.70 and 435,934.20 is: 653,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,223.80 : 1,318,835.70 = 435,934.20 : x
  2. Step 2: Convert to fraction form
    879,223.80/1,318,835.70 = 435,934.20/x
  3. Step 3: Cross multiply
    879,223.80x = 1,318,835.70 × 435,934.20
  4. Step 4: Simplify right side
    879,223.80x = 574,925,585,810.94
  5. Step 5: Solve for x
    x = 574,925,585,810.94/879,223.80
  6. Step 6: Final answer
    x = 653,901.30

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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.