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Finding the Fourth Proportional to 509,059.08, 702,482.28 and 282,719.16

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Solution

The fourth proportional to 509,059.08, 702,482.28 and 282,719.16 is: 390,141.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,059.08 : 702,482.28 = 282,719.16 : x
  2. Step 2: Convert to fraction form
    509,059.08/702,482.28 = 282,719.16/x
  3. Step 3: Cross multiply
    509,059.08x = 702,482.28 × 282,719.16
  4. Step 4: Simplify right side
    509,059.08x = 198,605,200,116.49
  5. Step 5: Solve for x
    x = 198,605,200,116.49/509,059.08
  6. Step 6: Final answer
    x = 390,141.75

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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.