Home / 859,784.73-1,289,677.06-385,916.50

Finding the Fourth Proportional to 859,784.73, 1,289,677.06 and 385,916.50

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Solution

The fourth proportional to 859,784.73, 1,289,677.06 and 385,916.50 is: 578,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,784.73 : 1,289,677.06 = 385,916.50 : x
  2. Step 2: Convert to fraction form
    859,784.73/1,289,677.06 = 385,916.50/x
  3. Step 3: Cross multiply
    859,784.73x = 1,289,677.06 × 385,916.50
  4. Step 4: Simplify right side
    859,784.73x = 497,707,657,125.49
  5. Step 5: Solve for x
    x = 497,707,657,125.49/859,784.73
  6. Step 6: Final answer
    x = 578,874.73

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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.