Home / 1,355,774.22-1,870,967.70-743,931

Finding the Fourth Proportional to 1,355,774.22, 1,870,967.70 and 743,931

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Solution

The fourth proportional to 1,355,774.22, 1,870,967.70 and 743,931 is: 1,026,624.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,774.22 : 1,870,967.70 = 743,931 : x
  2. Step 2: Convert to fraction form
    1,355,774.22/1,870,967.70 = 743,931/x
  3. Step 3: Cross multiply
    1,355,774.22x = 1,870,967.70 × 743,931
  4. Step 4: Simplify right side
    1,355,774.22x = 1,391,870,872,028.70
  5. Step 5: Solve for x
    x = 1,391,870,872,028.70/1,355,774.22
  6. Step 6: Final answer
    x = 1,026,624.38

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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.