Home / 637,401.16-879,624.87-347,021.17

Finding the Fourth Proportional to 637,401.16, 879,624.87 and 347,021.17

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Solution

The fourth proportional to 637,401.16, 879,624.87 and 347,021.17 is: 478,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,401.16 : 879,624.87 = 347,021.17 : x
  2. Step 2: Convert to fraction form
    637,401.16/879,624.87 = 347,021.17/x
  3. Step 3: Cross multiply
    637,401.16x = 879,624.87 × 347,021.17
  4. Step 4: Simplify right side
    637,401.16x = 305,248,451,548.50
  5. Step 5: Solve for x
    x = 305,248,451,548.50/637,401.16
  6. Step 6: Final answer
    x = 478,895.35

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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.