Home / 740,279.49-1,021,589.01-400,747.74

Finding the Fourth Proportional to 740,279.49, 1,021,589.01 and 400,747.74

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Solution

The fourth proportional to 740,279.49, 1,021,589.01 and 400,747.74 is: 553,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,279.49 : 1,021,589.01 = 400,747.74 : x
  2. Step 2: Convert to fraction form
    740,279.49/1,021,589.01 = 400,747.74/x
  3. Step 3: Cross multiply
    740,279.49x = 1,021,589.01 × 400,747.74
  4. Step 4: Simplify right side
    740,279.49x = 409,399,486,966.34
  5. Step 5: Solve for x
    x = 409,399,486,966.34/740,279.49
  6. Step 6: Final answer
    x = 553,033.68

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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.