Home / 740,098.64-1,021,279.11-417,840.55

Finding the Fourth Proportional to 740,098.64, 1,021,279.11 and 417,840.55

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Solution

The fourth proportional to 740,098.64, 1,021,279.11 and 417,840.55 is: 576,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,098.64 : 1,021,279.11 = 417,840.55 : x
  2. Step 2: Convert to fraction form
    740,098.64/1,021,279.11 = 417,840.55/x
  3. Step 3: Cross multiply
    740,098.64x = 1,021,279.11 × 417,840.55
  4. Step 4: Simplify right side
    740,098.64x = 426,731,820,905.81
  5. Step 5: Solve for x
    x = 426,731,820,905.81/740,098.64
  6. Step 6: Final answer
    x = 576,587.76

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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.