Home / 1,289,402.83-1,934,118.83-390,837.43

Finding the Fourth Proportional to 1,289,402.83, 1,934,118.83 and 390,837.43

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Solution

The fourth proportional to 1,289,402.83, 1,934,118.83 and 390,837.43 is: 586,260.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,402.83 : 1,934,118.83 = 390,837.43 : x
  2. Step 2: Convert to fraction form
    1,289,402.83/1,934,118.83 = 390,837.43/x
  3. Step 3: Cross multiply
    1,289,402.83x = 1,934,118.83 × 390,837.43
  4. Step 4: Simplify right side
    1,289,402.83x = 755,926,032,831.81
  5. Step 5: Solve for x
    x = 755,926,032,831.81/1,289,402.83
  6. Step 6: Final answer
    x = 586,260.57

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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.