Home / 1,564,355.88-2,158,841.76-1,020,839.40

Finding the Fourth Proportional to 1,564,355.88, 2,158,841.76 and 1,020,839.40

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Solution

The fourth proportional to 1,564,355.88, 2,158,841.76 and 1,020,839.40 is: 1,408,778.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,355.88 : 2,158,841.76 = 1,020,839.40 : x
  2. Step 2: Convert to fraction form
    1,564,355.88/2,158,841.76 = 1,020,839.40/x
  3. Step 3: Cross multiply
    1,564,355.88x = 2,158,841.76 × 1,020,839.40
  4. Step 4: Simplify right side
    1,564,355.88x = 2,203,830,726,973.34
  5. Step 5: Solve for x
    x = 2,203,830,726,973.34/1,564,355.88
  6. Step 6: Final answer
    x = 1,408,778.37

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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.