Home / 790,352.70-1,090,686.65-427,776.50

Finding the Fourth Proportional to 790,352.70, 1,090,686.65 and 427,776.50

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Solution

The fourth proportional to 790,352.70, 1,090,686.65 and 427,776.50 is: 590,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,352.70 : 1,090,686.65 = 427,776.50 : x
  2. Step 2: Convert to fraction form
    790,352.70/1,090,686.65 = 427,776.50/x
  3. Step 3: Cross multiply
    790,352.70x = 1,090,686.65 × 427,776.50
  4. Step 4: Simplify right side
    790,352.70x = 466,570,110,141.41
  5. Step 5: Solve for x
    x = 466,570,110,141.41/790,352.70
  6. Step 6: Final answer
    x = 590,331.52

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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.