Home / 913,123.80-1,369,685.70-414,487.80

Finding the Fourth Proportional to 913,123.80, 1,369,685.70 and 414,487.80

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Solution

The fourth proportional to 913,123.80, 1,369,685.70 and 414,487.80 is: 621,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,123.80 : 1,369,685.70 = 414,487.80 : x
  2. Step 2: Convert to fraction form
    913,123.80/1,369,685.70 = 414,487.80/x
  3. Step 3: Cross multiply
    913,123.80x = 1,369,685.70 × 414,487.80
  4. Step 4: Simplify right side
    913,123.80x = 567,718,012,484.46
  5. Step 5: Solve for x
    x = 567,718,012,484.46/913,123.80
  6. Step 6: Final answer
    x = 621,731.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.