Home / 1,564,938.72-2,159,806.14-920,327.76

Finding the Fourth Proportional to 1,564,938.72, 2,159,806.14 and 920,327.76

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Solution

The fourth proportional to 1,564,938.72, 2,159,806.14 and 920,327.76 is: 1,270,164.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,938.72 : 2,159,806.14 = 920,327.76 : x
  2. Step 2: Convert to fraction form
    1,564,938.72/2,159,806.14 = 920,327.76/x
  3. Step 3: Cross multiply
    1,564,938.72x = 2,159,806.14 × 920,327.76
  4. Step 4: Simplify right side
    1,564,938.72x = 1,987,729,546,860.45
  5. Step 5: Solve for x
    x = 1,987,729,546,860.45/1,564,938.72
  6. Step 6: Final answer
    x = 1,270,164.46

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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.