Home / 370,715.28-553,359.90-318,460.56

Finding the Fourth Proportional to 370,715.28, 553,359.90 and 318,460.56

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Solution

The fourth proportional to 370,715.28, 553,359.90 and 318,460.56 is: 475,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,715.28 : 553,359.90 = 318,460.56 : x
  2. Step 2: Convert to fraction form
    370,715.28/553,359.90 = 318,460.56/x
  3. Step 3: Cross multiply
    370,715.28x = 553,359.90 × 318,460.56
  4. Step 4: Simplify right side
    370,715.28x = 176,223,303,635.54
  5. Step 5: Solve for x
    x = 176,223,303,635.54/370,715.28
  6. Step 6: Final answer
    x = 475,360.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.