Home / 1,189,888.98-1,642,037.71-646,013.98

Finding the Fourth Proportional to 1,189,888.98, 1,642,037.71 and 646,013.98

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Solution

The fourth proportional to 1,189,888.98, 1,642,037.71 and 646,013.98 is: 891,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,888.98 : 1,642,037.71 = 646,013.98 : x
  2. Step 2: Convert to fraction form
    1,189,888.98/1,642,037.71 = 646,013.98/x
  3. Step 3: Cross multiply
    1,189,888.98x = 1,642,037.71 × 646,013.98
  4. Step 4: Simplify right side
    1,189,888.98x = 1,060,779,316,347.19
  5. Step 5: Solve for x
    x = 1,060,779,316,347.19/1,189,888.98
  6. Step 6: Final answer
    x = 891,494.36

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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.