Home / 1,212,150.32-1,672,779.16-668,307.76

Finding the Fourth Proportional to 1,212,150.32, 1,672,779.16 and 668,307.76

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Solution

The fourth proportional to 1,212,150.32, 1,672,779.16 and 668,307.76 is: 922,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,150.32 : 1,672,779.16 = 668,307.76 : x
  2. Step 2: Convert to fraction form
    1,212,150.32/1,672,779.16 = 668,307.76/x
  3. Step 3: Cross multiply
    1,212,150.32x = 1,672,779.16 × 668,307.76
  4. Step 4: Simplify right side
    1,212,150.32x = 1,117,931,293,394.28
  5. Step 5: Solve for x
    x = 1,117,931,293,394.28/1,212,150.32
  6. Step 6: Final answer
    x = 922,271.17

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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.