Home / 1,355,069.34-1,869,860.88-782,294.04

Finding the Fourth Proportional to 1,355,069.34, 1,869,860.88 and 782,294.04

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Solution

The fourth proportional to 1,355,069.34, 1,869,860.88 and 782,294.04 is: 1,079,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,069.34 : 1,869,860.88 = 782,294.04 : x
  2. Step 2: Convert to fraction form
    1,355,069.34/1,869,860.88 = 782,294.04/x
  3. Step 3: Cross multiply
    1,355,069.34x = 1,869,860.88 × 782,294.04
  4. Step 4: Simplify right side
    1,355,069.34x = 1,462,781,022,053.16
  5. Step 5: Solve for x
    x = 1,462,781,022,053.16/1,355,069.34
  6. Step 6: Final answer
    x = 1,079,487.95

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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.