Home / 509,426.48-702,962.75-279,981.23

Finding the Fourth Proportional to 509,426.48, 702,962.75 and 279,981.23

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Solution

The fourth proportional to 509,426.48, 702,962.75 and 279,981.23 is: 386,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,426.48 : 702,962.75 = 279,981.23 : x
  2. Step 2: Convert to fraction form
    509,426.48/702,962.75 = 279,981.23/x
  3. Step 3: Cross multiply
    509,426.48x = 702,962.75 × 279,981.23
  4. Step 4: Simplify right side
    509,426.48x = 196,816,372,574.32
  5. Step 5: Solve for x
    x = 196,816,372,574.32/509,426.48
  6. Step 6: Final answer
    x = 386,348.92

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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.