Home / 790,135.95-1,090,380.02-427,551.87

Finding the Fourth Proportional to 790,135.95, 1,090,380.02 and 427,551.87

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Solution

The fourth proportional to 790,135.95, 1,090,380.02 and 427,551.87 is: 590,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,135.95 : 1,090,380.02 = 427,551.87 : x
  2. Step 2: Convert to fraction form
    790,135.95/1,090,380.02 = 427,551.87/x
  3. Step 3: Cross multiply
    790,135.95x = 1,090,380.02 × 427,551.87
  4. Step 4: Simplify right side
    790,135.95x = 466,194,014,423.88
  5. Step 5: Solve for x
    x = 466,194,014,423.88/790,135.95
  6. Step 6: Final answer
    x = 590,017.47

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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.