Home / 771,591.74-1,064,785.07-427,426.64

Finding the Fourth Proportional to 771,591.74, 1,064,785.07 and 427,426.64

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Solution

The fourth proportional to 771,591.74, 1,064,785.07 and 427,426.64 is: 589,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,591.74 : 1,064,785.07 = 427,426.64 : x
  2. Step 2: Convert to fraction form
    771,591.74/1,064,785.07 = 427,426.64/x
  3. Step 3: Cross multiply
    771,591.74x = 1,064,785.07 × 427,426.64
  4. Step 4: Simplify right side
    771,591.74x = 455,117,503,327.71
  5. Step 5: Solve for x
    x = 455,117,503,327.71/771,591.74
  6. Step 6: Final answer
    x = 589,842.37

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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.