Home / 761,618.90-1,050,896.09-489,624.41

Finding the Fourth Proportional to 761,618.90, 1,050,896.09 and 489,624.41

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Solution

The fourth proportional to 761,618.90, 1,050,896.09 and 489,624.41 is: 675,592.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,618.90 : 1,050,896.09 = 489,624.41 : x
  2. Step 2: Convert to fraction form
    761,618.90/1,050,896.09 = 489,624.41/x
  3. Step 3: Cross multiply
    761,618.90x = 1,050,896.09 × 489,624.41
  4. Step 4: Simplify right side
    761,618.90x = 514,544,381,888.86
  5. Step 5: Solve for x
    x = 514,544,381,888.86/761,618.90
  6. Step 6: Final answer
    x = 675,592.98

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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.