Home / 760,309.88-1,139,579.08-423,189.29

Finding the Fourth Proportional to 760,309.88, 1,139,579.08 and 423,189.29

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Solution

The fourth proportional to 760,309.88, 1,139,579.08 and 423,189.29 is: 634,290.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,309.88 : 1,139,579.08 = 423,189.29 : x
  2. Step 2: Convert to fraction form
    760,309.88/1,139,579.08 = 423,189.29/x
  3. Step 3: Cross multiply
    760,309.88x = 1,139,579.08 × 423,189.29
  4. Step 4: Simplify right side
    760,309.88x = 482,257,663,555.03
  5. Step 5: Solve for x
    x = 482,257,663,555.03/760,309.88
  6. Step 6: Final answer
    x = 634,290.94

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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.