Home / 761,623.16-1,051,155.71-486,099.95

Finding the Fourth Proportional to 761,623.16, 1,051,155.71 and 486,099.95

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Solution

The fourth proportional to 761,623.16, 1,051,155.71 and 486,099.95 is: 670,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,623.16 : 1,051,155.71 = 486,099.95 : x
  2. Step 2: Convert to fraction form
    761,623.16/1,051,155.71 = 486,099.95/x
  3. Step 3: Cross multiply
    761,623.16x = 1,051,155.71 × 486,099.95
  4. Step 4: Simplify right side
    761,623.16x = 510,966,740,856.87
  5. Step 5: Solve for x
    x = 510,966,740,856.87/761,623.16
  6. Step 6: Final answer
    x = 670,891.82

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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.