Home / 1,007,906.79-1,390,810.50-620,660.17

Finding the Fourth Proportional to 1,007,906.79, 1,390,810.50 and 620,660.17

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Solution

The fourth proportional to 1,007,906.79, 1,390,810.50 and 620,660.17 is: 856,448.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,906.79 : 1,390,810.50 = 620,660.17 : x
  2. Step 2: Convert to fraction form
    1,007,906.79/1,390,810.50 = 620,660.17/x
  3. Step 3: Cross multiply
    1,007,906.79x = 1,390,810.50 × 620,660.17
  4. Step 4: Simplify right side
    1,007,906.79x = 863,220,683,106.30
  5. Step 5: Solve for x
    x = 863,220,683,106.30/1,007,906.79
  6. Step 6: Final answer
    x = 856,448.92

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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.