Home / 821,932.74-1,133,946.81-515,830.50

Finding the Fourth Proportional to 821,932.74, 1,133,946.81 and 515,830.50

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Solution

The fourth proportional to 821,932.74, 1,133,946.81 and 515,830.50 is: 711,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,932.74 : 1,133,946.81 = 515,830.50 : x
  2. Step 2: Convert to fraction form
    821,932.74/1,133,946.81 = 515,830.50/x
  3. Step 3: Cross multiply
    821,932.74x = 1,133,946.81 × 515,830.50
  4. Step 4: Simplify right side
    821,932.74x = 584,924,349,975.71
  5. Step 5: Solve for x
    x = 584,924,349,975.71/821,932.74
  6. Step 6: Final answer
    x = 711,645.03

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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.