Home / 760,635.54-1,139,295.30-380,893.98

Finding the Fourth Proportional to 760,635.54, 1,139,295.30 and 380,893.98

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Solution

The fourth proportional to 760,635.54, 1,139,295.30 and 380,893.98 is: 570,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,635.54 : 1,139,295.30 = 380,893.98 : x
  2. Step 2: Convert to fraction form
    760,635.54/1,139,295.30 = 380,893.98/x
  3. Step 3: Cross multiply
    760,635.54x = 1,139,295.30 × 380,893.98
  4. Step 4: Simplify right side
    760,635.54x = 433,950,721,212.29
  5. Step 5: Solve for x
    x = 433,950,721,212.29/760,635.54
  6. Step 6: Final answer
    x = 570,510.71

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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.