Home / 509,146.12-702,602.94-282,806.20

Finding the Fourth Proportional to 509,146.12, 702,602.94 and 282,806.20

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Solution

The fourth proportional to 509,146.12, 702,602.94 and 282,806.20 is: 390,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,146.12 : 702,602.94 = 282,806.20 : x
  2. Step 2: Convert to fraction form
    509,146.12/702,602.94 = 282,806.20/x
  3. Step 3: Cross multiply
    509,146.12x = 702,602.94 × 282,806.20
  4. Step 4: Simplify right side
    509,146.12x = 198,700,467,570.23
  5. Step 5: Solve for x
    x = 198,700,467,570.23/509,146.12
  6. Step 6: Final answer
    x = 390,262.17

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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.