Home / 908,007.19-1,252,940.22-520,802.55

Finding the Fourth Proportional to 908,007.19, 1,252,940.22 and 520,802.55

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Solution

The fourth proportional to 908,007.19, 1,252,940.22 and 520,802.55 is: 718,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,007.19 : 1,252,940.22 = 520,802.55 : x
  2. Step 2: Convert to fraction form
    908,007.19/1,252,940.22 = 520,802.55/x
  3. Step 3: Cross multiply
    908,007.19x = 1,252,940.22 × 520,802.55
  4. Step 4: Simplify right side
    908,007.19x = 652,534,461,573.56
  5. Step 5: Solve for x
    x = 652,534,461,573.56/908,007.19
  6. Step 6: Final answer
    x = 718,644.60

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1.5x scale

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.