Home / 999,602.86-1,378,017.17-712,624.72

Finding the Fourth Proportional to 999,602.86, 1,378,017.17 and 712,624.72

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Solution

The fourth proportional to 999,602.86, 1,378,017.17 and 712,624.72 is: 982,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,602.86 : 1,378,017.17 = 712,624.72 : x
  2. Step 2: Convert to fraction form
    999,602.86/1,378,017.17 = 712,624.72/x
  3. Step 3: Cross multiply
    999,602.86x = 1,378,017.17 × 712,624.72
  4. Step 4: Simplify right side
    999,602.86x = 982,009,099,926.44
  5. Step 5: Solve for x
    x = 982,009,099,926.44/999,602.86
  6. Step 6: Final answer
    x = 982,399.25

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1.5x scale

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.