Home / 771,652.58-1,064,869.06-427,487.79

Finding the Fourth Proportional to 771,652.58, 1,064,869.06 and 427,487.79

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Solution

The fourth proportional to 771,652.58, 1,064,869.06 and 427,487.79 is: 589,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,652.58 : 1,064,869.06 = 427,487.79 : x
  2. Step 2: Convert to fraction form
    771,652.58/1,064,869.06 = 427,487.79/x
  3. Step 3: Cross multiply
    771,652.58x = 1,064,869.06 × 427,487.79
  4. Step 4: Simplify right side
    771,652.58x = 455,218,518,961.34
  5. Step 5: Solve for x
    x = 455,218,518,961.34/771,652.58
  6. Step 6: Final answer
    x = 589,926.78

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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.