Home / 1,186,287.93-1,779,063.75-428,030.93

Finding the Fourth Proportional to 1,186,287.93, 1,779,063.75 and 428,030.93

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Solution

The fourth proportional to 1,186,287.93, 1,779,063.75 and 428,030.93 is: 641,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,287.93 : 1,779,063.75 = 428,030.93 : x
  2. Step 2: Convert to fraction form
    1,186,287.93/1,779,063.75 = 428,030.93/x
  3. Step 3: Cross multiply
    1,186,287.93x = 1,779,063.75 × 428,030.93
  4. Step 4: Simplify right side
    1,186,287.93x = 761,494,315,889.45
  5. Step 5: Solve for x
    x = 761,494,315,889.45/1,186,287.93
  6. Step 6: Final answer
    x = 641,913.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.