Home / 991,295.10-1,367,970.39-538,582.86

Finding the Fourth Proportional to 991,295.10, 1,367,970.39 and 538,582.86

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Solution

The fourth proportional to 991,295.10, 1,367,970.39 and 538,582.86 is: 743,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,295.10 : 1,367,970.39 = 538,582.86 : x
  2. Step 2: Convert to fraction form
    991,295.10/1,367,970.39 = 538,582.86/x
  3. Step 3: Cross multiply
    991,295.10x = 1,367,970.39 × 538,582.86
  4. Step 4: Simplify right side
    991,295.10x = 736,765,405,041.52
  5. Step 5: Solve for x
    x = 736,765,405,041.52/991,295.10
  6. Step 6: Final answer
    x = 743,235.19

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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.