Home / 638,192.04-880,705.15-347,803.67

Finding the Fourth Proportional to 638,192.04, 880,705.15 and 347,803.67

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Solution

The fourth proportional to 638,192.04, 880,705.15 and 347,803.67 is: 479,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,192.04 : 880,705.15 = 347,803.67 : x
  2. Step 2: Convert to fraction form
    638,192.04/880,705.15 = 347,803.67/x
  3. Step 3: Cross multiply
    638,192.04x = 880,705.15 × 347,803.67
  4. Step 4: Simplify right side
    638,192.04x = 306,312,486,429.17
  5. Step 5: Solve for x
    x = 306,312,486,429.17/638,192.04
  6. Step 6: Final answer
    x = 479,969.14

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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.