Home / 507,968.83-761,951.73-128,888.83

Finding the Fourth Proportional to 507,968.83, 761,951.73 and 128,888.83

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Solution

The fourth proportional to 507,968.83, 761,951.73 and 128,888.83 is: 193,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,968.83 : 761,951.73 = 128,888.83 : x
  2. Step 2: Convert to fraction form
    507,968.83/761,951.73 = 128,888.83/x
  3. Step 3: Cross multiply
    507,968.83x = 761,951.73 × 128,888.83
  4. Step 4: Simplify right side
    507,968.83x = 98,207,068,901.06
  5. Step 5: Solve for x
    x = 98,207,068,901.06/507,968.83
  6. Step 6: Final answer
    x = 193,332.86

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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.