Home / 900,903.94-1,243,247.47-493,005.76

Finding the Fourth Proportional to 900,903.94, 1,243,247.47 and 493,005.76

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Solution

The fourth proportional to 900,903.94, 1,243,247.47 and 493,005.76 is: 680,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,903.94 : 1,243,247.47 = 493,005.76 : x
  2. Step 2: Convert to fraction form
    900,903.94/1,243,247.47 = 493,005.76/x
  3. Step 3: Cross multiply
    900,903.94x = 1,243,247.47 × 493,005.76
  4. Step 4: Simplify right side
    900,903.94x = 612,928,159,474.79
  5. Step 5: Solve for x
    x = 612,928,159,474.79/900,903.94
  6. Step 6: Final answer
    x = 680,347.96

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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.