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Finding the Fourth Proportional to 514,482.48, 709,995.60 and 288,127.44

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Solution

The fourth proportional to 514,482.48, 709,995.60 and 288,127.44 is: 397,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,482.48 : 709,995.60 = 288,127.44 : x
  2. Step 2: Convert to fraction form
    514,482.48/709,995.60 = 288,127.44/x
  3. Step 3: Cross multiply
    514,482.48x = 709,995.60 × 288,127.44
  4. Step 4: Simplify right side
    514,482.48x = 204,569,214,639.26
  5. Step 5: Solve for x
    x = 204,569,214,639.26/514,482.48
  6. Step 6: Final answer
    x = 397,621.34

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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.