Home / 771,535.87-1,064,682.51-427,348.58

Finding the Fourth Proportional to 771,535.87, 1,064,682.51 and 427,348.58

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Solution

The fourth proportional to 771,535.87, 1,064,682.51 and 427,348.58 is: 589,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,535.87 : 1,064,682.51 = 427,348.58 : x
  2. Step 2: Convert to fraction form
    771,535.87/1,064,682.51 = 427,348.58/x
  3. Step 3: Cross multiply
    771,535.87x = 1,064,682.51 × 427,348.58
  4. Step 4: Simplify right side
    771,535.87x = 454,990,558,799.34
  5. Step 5: Solve for x
    x = 454,990,558,799.34/771,535.87
  6. Step 6: Final answer
    x = 589,720.55

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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.