Home / 771,665.40-1,064,873.52-427,487.22

Finding the Fourth Proportional to 771,665.40, 1,064,873.52 and 427,487.22

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Solution

The fourth proportional to 771,665.40, 1,064,873.52 and 427,487.22 is: 589,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,665.40 : 1,064,873.52 = 427,487.22 : x
  2. Step 2: Convert to fraction form
    771,665.40/1,064,873.52 = 427,487.22/x
  3. Step 3: Cross multiply
    771,665.40x = 1,064,873.52 × 427,487.22
  4. Step 4: Simplify right side
    771,665.40x = 455,219,820,716.41
  5. Step 5: Solve for x
    x = 455,219,820,716.41/771,665.40
  6. Step 6: Final answer
    x = 589,918.66

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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.