Home / 877,724.60-1,211,742.02-551,378

Finding the Fourth Proportional to 877,724.60, 1,211,742.02 and 551,378

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Solution

The fourth proportional to 877,724.60, 1,211,742.02 and 551,378 is: 761,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,724.60 : 1,211,742.02 = 551,378 : x
  2. Step 2: Convert to fraction form
    877,724.60/1,211,742.02 = 551,378/x
  3. Step 3: Cross multiply
    877,724.60x = 1,211,742.02 × 551,378
  4. Step 4: Simplify right side
    877,724.60x = 668,127,891,503.56
  5. Step 5: Solve for x
    x = 668,127,891,503.56/877,724.60
  6. Step 6: Final answer
    x = 761,204.47

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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.