Home / 1,155,407.51-1,594,432.53-639,147.95

Finding the Fourth Proportional to 1,155,407.51, 1,594,432.53 and 639,147.95

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Solution

The fourth proportional to 1,155,407.51, 1,594,432.53 and 639,147.95 is: 882,007.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,407.51 : 1,594,432.53 = 639,147.95 : x
  2. Step 2: Convert to fraction form
    1,155,407.51/1,594,432.53 = 639,147.95/x
  3. Step 3: Cross multiply
    1,155,407.51x = 1,594,432.53 × 639,147.95
  4. Step 4: Simplify right side
    1,155,407.51x = 1,019,078,282,962.81
  5. Step 5: Solve for x
    x = 1,019,078,282,962.81/1,155,407.51
  6. Step 6: Final answer
    x = 882,007.67

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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.