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Finding the Fourth Proportional to 665,488.08, 918,371.52 and 363,682.08

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Solution

The fourth proportional to 665,488.08, 918,371.52 and 363,682.08 is: 501,880.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,488.08 : 918,371.52 = 363,682.08 : x
  2. Step 2: Convert to fraction form
    665,488.08/918,371.52 = 363,682.08/x
  3. Step 3: Cross multiply
    665,488.08x = 918,371.52 × 363,682.08
  4. Step 4: Simplify right side
    665,488.08x = 333,995,264,606.36
  5. Step 5: Solve for x
    x = 333,995,264,606.36/665,488.08
  6. Step 6: Final answer
    x = 501,880.16

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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.