Home / 1,681,672-2,320,756.32-917,774.40

Finding the Fourth Proportional to 1,681,672, 2,320,756.32 and 917,774.40

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Solution

The fourth proportional to 1,681,672, 2,320,756.32 and 917,774.40 is: 1,266,555.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,672 : 2,320,756.32 = 917,774.40 : x
  2. Step 2: Convert to fraction form
    1,681,672/2,320,756.32 = 917,774.40/x
  3. Step 3: Cross multiply
    1,681,672x = 2,320,756.32 × 917,774.40
  4. Step 4: Simplify right side
    1,681,672x = 2,129,930,739,134.21
  5. Step 5: Solve for x
    x = 2,129,930,739,134.21/1,681,672
  6. Step 6: Final answer
    x = 1,266,555.39

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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.