Home / 740,288.79-1,021,598.88-400,757.04

Finding the Fourth Proportional to 740,288.79, 1,021,598.88 and 400,757.04

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Solution

The fourth proportional to 740,288.79, 1,021,598.88 and 400,757.04 is: 553,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,288.79 : 1,021,598.88 = 400,757.04 : x
  2. Step 2: Convert to fraction form
    740,288.79/1,021,598.88 = 400,757.04/x
  3. Step 3: Cross multiply
    740,288.79x = 1,021,598.88 × 400,757.04
  4. Step 4: Simplify right side
    740,288.79x = 409,412,943,216.12
  5. Step 5: Solve for x
    x = 409,412,943,216.12/740,288.79
  6. Step 6: Final answer
    x = 553,044.90

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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.