Home / 999,637.06-1,378,064.32-712,658.92

Finding the Fourth Proportional to 999,637.06, 1,378,064.32 and 712,658.92

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Solution

The fourth proportional to 999,637.06, 1,378,064.32 and 712,658.92 is: 982,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,637.06 : 1,378,064.32 = 712,658.92 : x
  2. Step 2: Convert to fraction form
    999,637.06/1,378,064.32 = 712,658.92/x
  3. Step 3: Cross multiply
    999,637.06x = 1,378,064.32 × 712,658.92
  4. Step 4: Simplify right side
    999,637.06x = 982,089,829,981.74
  5. Step 5: Solve for x
    x = 982,089,829,981.74/999,637.06
  6. Step 6: Final answer
    x = 982,446.40

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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.