Home / 790,354.08-1,090,688.54-427,777.87

Finding the Fourth Proportional to 790,354.08, 1,090,688.54 and 427,777.87

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Solution

The fourth proportional to 790,354.08, 1,090,688.54 and 427,777.87 is: 590,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,354.08 : 1,090,688.54 = 427,777.87 : x
  2. Step 2: Convert to fraction form
    790,354.08/1,090,688.54 = 427,777.87/x
  3. Step 3: Cross multiply
    790,354.08x = 1,090,688.54 × 427,777.87
  4. Step 4: Simplify right side
    790,354.08x = 466,572,420,474.61
  5. Step 5: Solve for x
    x = 466,572,420,474.61/790,354.08
  6. Step 6: Final answer
    x = 590,333.42

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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.