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Finding the Fourth Proportional to 901,404, 1,243,573.20 and 519,226.08

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Solution

The fourth proportional to 901,404, 1,243,573.20 and 519,226.08 is: 716,322.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,404 : 1,243,573.20 = 519,226.08 : x
  2. Step 2: Convert to fraction form
    901,404/1,243,573.20 = 519,226.08/x
  3. Step 3: Cross multiply
    901,404x = 1,243,573.20 × 519,226.08
  4. Step 4: Simplify right side
    901,404x = 645,695,637,829.06
  5. Step 5: Solve for x
    x = 645,695,637,829.06/901,404
  6. Step 6: Final answer
    x = 716,322.14

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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.