Home / 891,507.52-1,229,981.04-509,263.60

Finding the Fourth Proportional to 891,507.52, 1,229,981.04 and 509,263.60

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Solution

The fourth proportional to 891,507.52, 1,229,981.04 and 509,263.60 is: 702,612.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,507.52 : 1,229,981.04 = 509,263.60 : x
  2. Step 2: Convert to fraction form
    891,507.52/1,229,981.04 = 509,263.60/x
  3. Step 3: Cross multiply
    891,507.52x = 1,229,981.04 × 509,263.60
  4. Step 4: Simplify right side
    891,507.52x = 626,384,572,362.14
  5. Step 5: Solve for x
    x = 626,384,572,362.14/891,507.52
  6. Step 6: Final answer
    x = 702,612.77

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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.