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Finding the Fourth Proportional to 536,059.68, 739,710 and 309,700.32

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Solution

The fourth proportional to 536,059.68, 739,710 and 309,700.32 is: 427,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,059.68 : 739,710 = 309,700.32 : x
  2. Step 2: Convert to fraction form
    536,059.68/739,710 = 309,700.32/x
  3. Step 3: Cross multiply
    536,059.68x = 739,710 × 309,700.32
  4. Step 4: Simplify right side
    536,059.68x = 229,088,423,707.20
  5. Step 5: Solve for x
    x = 229,088,423,707.20/536,059.68
  6. Step 6: Final answer
    x = 427,356.19

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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.