Home / 761,550.95-1,141,953.21-312,149.58

Finding the Fourth Proportional to 761,550.95, 1,141,953.21 and 312,149.58

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Solution

The fourth proportional to 761,550.95, 1,141,953.21 and 312,149.58 is: 468,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,550.95 : 1,141,953.21 = 312,149.58 : x
  2. Step 2: Convert to fraction form
    761,550.95/1,141,953.21 = 312,149.58/x
  3. Step 3: Cross multiply
    761,550.95x = 1,141,953.21 × 312,149.58
  4. Step 4: Simplify right side
    761,550.95x = 356,460,214,881.15
  5. Step 5: Solve for x
    x = 356,460,214,881.15/761,550.95
  6. Step 6: Final answer
    x = 468,071.40

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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.