Home / 987,145.32-1,480,718.18-356,059.07

Finding the Fourth Proportional to 987,145.32, 1,480,718.18 and 356,059.07

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Solution

The fourth proportional to 987,145.32, 1,480,718.18 and 356,059.07 is: 534,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,145.32 : 1,480,718.18 = 356,059.07 : x
  2. Step 2: Convert to fraction form
    987,145.32/1,480,718.18 = 356,059.07/x
  3. Step 3: Cross multiply
    987,145.32x = 1,480,718.18 × 356,059.07
  4. Step 4: Simplify right side
    987,145.32x = 527,223,128,919.01
  5. Step 5: Solve for x
    x = 527,223,128,919.01/987,145.32
  6. Step 6: Final answer
    x = 534,088.67

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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.