Home / 760,628.88-1,139,261.49-520,172.97

Finding the Fourth Proportional to 760,628.88, 1,139,261.49 and 520,172.97

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Solution

The fourth proportional to 760,628.88, 1,139,261.49 and 520,172.97 is: 779,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,628.88 : 1,139,261.49 = 520,172.97 : x
  2. Step 2: Convert to fraction form
    760,628.88/1,139,261.49 = 520,172.97/x
  3. Step 3: Cross multiply
    760,628.88x = 1,139,261.49 × 520,172.97
  4. Step 4: Simplify right side
    760,628.88x = 592,613,032,859.93
  5. Step 5: Solve for x
    x = 592,613,032,859.93/760,628.88
  6. Step 6: Final answer
    x = 779,109.30

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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.