Home / 877,715.07-1,211,728.86-551,368.50

Finding the Fourth Proportional to 877,715.07, 1,211,728.86 and 551,368.50

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Solution

The fourth proportional to 877,715.07, 1,211,728.86 and 551,368.50 is: 761,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,715.07 : 1,211,728.86 = 551,368.50 : x
  2. Step 2: Convert to fraction form
    877,715.07/1,211,728.86 = 551,368.50/x
  3. Step 3: Cross multiply
    877,715.07x = 1,211,728.86 × 551,368.50
  4. Step 4: Simplify right side
    877,715.07x = 668,109,123,944.91
  5. Step 5: Solve for x
    x = 668,109,123,944.91/877,715.07
  6. Step 6: Final answer
    x = 761,191.36

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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.