Home / 711,669-982,094.46-389,374.44

Finding the Fourth Proportional to 711,669, 982,094.46 and 389,374.44

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Solution

The fourth proportional to 711,669, 982,094.46 and 389,374.44 is: 537,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,669 : 982,094.46 = 389,374.44 : x
  2. Step 2: Convert to fraction form
    711,669/982,094.46 = 389,374.44/x
  3. Step 3: Cross multiply
    711,669x = 982,094.46 × 389,374.44
  4. Step 4: Simplify right side
    711,669x = 382,402,480,389.60
  5. Step 5: Solve for x
    x = 382,402,480,389.60/711,669
  6. Step 6: Final answer
    x = 537,331.93

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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.