Home / 509,056.07-702,478.14-282,716.15

Finding the Fourth Proportional to 509,056.07, 702,478.14 and 282,716.15

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Solution

The fourth proportional to 509,056.07, 702,478.14 and 282,716.15 is: 390,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,056.07 : 702,478.14 = 282,716.15 : x
  2. Step 2: Convert to fraction form
    509,056.07/702,478.14 = 282,716.15/x
  3. Step 3: Cross multiply
    509,056.07x = 702,478.14 × 282,716.15
  4. Step 4: Simplify right side
    509,056.07x = 198,601,915,542.58
  5. Step 5: Solve for x
    x = 198,601,915,542.58/509,056.07
  6. Step 6: Final answer
    x = 390,137.60

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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.