Home / 877,819.95-1,211,913.59-555,806.07

Finding the Fourth Proportional to 877,819.95, 1,211,913.59 and 555,806.07

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Solution

The fourth proportional to 877,819.95, 1,211,913.59 and 555,806.07 is: 767,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,819.95 : 1,211,913.59 = 555,806.07 : x
  2. Step 2: Convert to fraction form
    877,819.95/1,211,913.59 = 555,806.07/x
  3. Step 3: Cross multiply
    877,819.95x = 1,211,913.59 × 555,806.07
  4. Step 4: Simplify right side
    877,819.95x = 673,588,929,637.49
  5. Step 5: Solve for x
    x = 673,588,929,637.49/877,819.95
  6. Step 6: Final answer
    x = 767,342.93

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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.