Home / 1,191,990.47-1,644,967.40-648,129.94

Finding the Fourth Proportional to 1,191,990.47, 1,644,967.40 and 648,129.94

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Solution

The fourth proportional to 1,191,990.47, 1,644,967.40 and 648,129.94 is: 894,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,990.47 : 1,644,967.40 = 648,129.94 : x
  2. Step 2: Convert to fraction form
    1,191,990.47/1,644,967.40 = 648,129.94/x
  3. Step 3: Cross multiply
    1,191,990.47x = 1,644,967.40 × 648,129.94
  4. Step 4: Simplify right side
    1,191,990.47x = 1,066,152,610,798.47
  5. Step 5: Solve for x
    x = 1,066,152,610,798.47/1,191,990.47
  6. Step 6: Final answer
    x = 894,430.48

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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.