Home / 936,118.71-1,291,839.93-506,397.78

Finding the Fourth Proportional to 936,118.71, 1,291,839.93 and 506,397.78

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Solution

The fourth proportional to 936,118.71, 1,291,839.93 and 506,397.78 is: 698,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,118.71 : 1,291,839.93 = 506,397.78 : x
  2. Step 2: Convert to fraction form
    936,118.71/1,291,839.93 = 506,397.78/x
  3. Step 3: Cross multiply
    936,118.71x = 1,291,839.93 × 506,397.78
  4. Step 4: Simplify right side
    936,118.71x = 654,184,872,667.36
  5. Step 5: Solve for x
    x = 654,184,872,667.36/936,118.71
  6. Step 6: Final answer
    x = 698,826.83

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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.