Home / 1,308,038.08-1,805,113.54-719,360.78

Finding the Fourth Proportional to 1,308,038.08, 1,805,113.54 and 719,360.78

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Solution

The fourth proportional to 1,308,038.08, 1,805,113.54 and 719,360.78 is: 992,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,038.08 : 1,805,113.54 = 719,360.78 : x
  2. Step 2: Convert to fraction form
    1,308,038.08/1,805,113.54 = 719,360.78/x
  3. Step 3: Cross multiply
    1,308,038.08x = 1,805,113.54 × 719,360.78
  4. Step 4: Simplify right side
    1,308,038.08x = 1,298,527,884,122.96
  5. Step 5: Solve for x
    x = 1,298,527,884,122.96/1,308,038.08
  6. Step 6: Final answer
    x = 992,729.42

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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.