Home / 740,298.42-1,021,614.12-400,765.86

Finding the Fourth Proportional to 740,298.42, 1,021,614.12 and 400,765.86

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Solution

The fourth proportional to 740,298.42, 1,021,614.12 and 400,765.86 is: 553,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,298.42 : 1,021,614.12 = 400,765.86 : x
  2. Step 2: Convert to fraction form
    740,298.42/1,021,614.12 = 400,765.86/x
  3. Step 3: Cross multiply
    740,298.42x = 1,021,614.12 × 400,765.86
  4. Step 4: Simplify right side
    740,298.42x = 409,428,061,389.94
  5. Step 5: Solve for x
    x = 409,428,061,389.94/740,298.42
  6. Step 6: Final answer
    x = 553,058.13

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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.