Home / 772,113.70-1,155,712.95-550,929.70

Finding the Fourth Proportional to 772,113.70, 1,155,712.95 and 550,929.70

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Solution

The fourth proportional to 772,113.70, 1,155,712.95 and 550,929.70 is: 824,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,113.70 : 1,155,712.95 = 550,929.70 : x
  2. Step 2: Convert to fraction form
    772,113.70/1,155,712.95 = 550,929.70/x
  3. Step 3: Cross multiply
    772,113.70x = 1,155,712.95 × 550,929.70
  4. Step 4: Simplify right side
    772,113.70x = 636,716,588,829.62
  5. Step 5: Solve for x
    x = 636,716,588,829.62/772,113.70
  6. Step 6: Final answer
    x = 824,640.97

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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.