Home / 710,106.85-979,971.64-419,967.13

Finding the Fourth Proportional to 710,106.85, 979,971.64 and 419,967.13

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Solution

The fourth proportional to 710,106.85, 979,971.64 and 419,967.13 is: 579,568.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,106.85 : 979,971.64 = 419,967.13 : x
  2. Step 2: Convert to fraction form
    710,106.85/979,971.64 = 419,967.13/x
  3. Step 3: Cross multiply
    710,106.85x = 979,971.64 × 419,967.13
  4. Step 4: Simplify right side
    710,106.85x = 411,555,877,132.19
  5. Step 5: Solve for x
    x = 411,555,877,132.19/710,106.85
  6. Step 6: Final answer
    x = 579,568.94

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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.