Home / 1,600,655.40-2,208,975.24-921,810.60

Finding the Fourth Proportional to 1,600,655.40, 2,208,975.24 and 921,810.60

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Solution

The fourth proportional to 1,600,655.40, 2,208,975.24 and 921,810.60 is: 1,272,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600,655.40 : 2,208,975.24 = 921,810.60 : x
  2. Step 2: Convert to fraction form
    1,600,655.40/2,208,975.24 = 921,810.60/x
  3. Step 3: Cross multiply
    1,600,655.40x = 2,208,975.24 × 921,810.60
  4. Step 4: Simplify right side
    1,600,655.40x = 2,036,256,791,369.54
  5. Step 5: Solve for x
    x = 2,036,256,791,369.54/1,600,655.40
  6. Step 6: Final answer
    x = 1,272,139.39

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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.