Home / 760,616.38-1,139,242.74-520,160.44

Finding the Fourth Proportional to 760,616.38, 1,139,242.74 and 520,160.44

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Solution

The fourth proportional to 760,616.38, 1,139,242.74 and 520,160.44 is: 779,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,616.38 : 1,139,242.74 = 520,160.44 : x
  2. Step 2: Convert to fraction form
    760,616.38/1,139,242.74 = 520,160.44/x
  3. Step 3: Cross multiply
    760,616.38x = 1,139,242.74 × 520,160.44
  4. Step 4: Simplify right side
    760,616.38x = 592,589,004,905.21
  5. Step 5: Solve for x
    x = 592,589,004,905.21/760,616.38
  6. Step 6: Final answer
    x = 779,090.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.