Home / 926,898.60-1,390,347.90-394,285.80

Finding the Fourth Proportional to 926,898.60, 1,390,347.90 and 394,285.80

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Solution

The fourth proportional to 926,898.60, 1,390,347.90 and 394,285.80 is: 591,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,898.60 : 1,390,347.90 = 394,285.80 : x
  2. Step 2: Convert to fraction form
    926,898.60/1,390,347.90 = 394,285.80/x
  3. Step 3: Cross multiply
    926,898.60x = 1,390,347.90 × 394,285.80
  4. Step 4: Simplify right side
    926,898.60x = 548,194,434,029.82
  5. Step 5: Solve for x
    x = 548,194,434,029.82/926,898.60
  6. Step 6: Final answer
    x = 591,428.70

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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.