Home / 1,155,811.86-1,595,140.43-665,798.31

Finding the Fourth Proportional to 1,155,811.86, 1,595,140.43 and 665,798.31

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Solution

The fourth proportional to 1,155,811.86, 1,595,140.43 and 665,798.31 is: 918,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,811.86 : 1,595,140.43 = 665,798.31 : x
  2. Step 2: Convert to fraction form
    1,155,811.86/1,595,140.43 = 665,798.31/x
  3. Step 3: Cross multiply
    1,155,811.86x = 1,595,140.43 × 665,798.31
  4. Step 4: Simplify right side
    1,155,811.86x = 1,062,041,799,177.68
  5. Step 5: Solve for x
    x = 1,062,041,799,177.68/1,155,811.86
  6. Step 6: Final answer
    x = 918,870.83

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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.