Home / 1,407,585.76-2,111,360.64-342,628.72

Finding the Fourth Proportional to 1,407,585.76, 2,111,360.64 and 342,628.72

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Solution

The fourth proportional to 1,407,585.76, 2,111,360.64 and 342,628.72 is: 513,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,585.76 : 2,111,360.64 = 342,628.72 : x
  2. Step 2: Convert to fraction form
    1,407,585.76/2,111,360.64 = 342,628.72/x
  3. Step 3: Cross multiply
    1,407,585.76x = 2,111,360.64 × 342,628.72
  4. Step 4: Simplify right side
    1,407,585.76x = 723,412,793,541.58
  5. Step 5: Solve for x
    x = 723,412,793,541.58/1,407,585.76
  6. Step 6: Final answer
    x = 513,938.70

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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.