Home / 779,680.77-1,077,012.57-587,540.87

Finding the Fourth Proportional to 779,680.77, 1,077,012.57 and 587,540.87

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Solution

The fourth proportional to 779,680.77, 1,077,012.57 and 587,540.87 is: 811,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,680.77 : 1,077,012.57 = 587,540.87 : x
  2. Step 2: Convert to fraction form
    779,680.77/1,077,012.57 = 587,540.87/x
  3. Step 3: Cross multiply
    779,680.77x = 1,077,012.57 × 587,540.87
  4. Step 4: Simplify right side
    779,680.77x = 632,788,896,993.67
  5. Step 5: Solve for x
    x = 632,788,896,993.67/779,680.77
  6. Step 6: Final answer
    x = 811,599.98

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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.