Home / 687,942.76-949,384.76-382,024.26

Finding the Fourth Proportional to 687,942.76, 949,384.76 and 382,024.26

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Solution

The fourth proportional to 687,942.76, 949,384.76 and 382,024.26 is: 527,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,942.76 : 949,384.76 = 382,024.26 : x
  2. Step 2: Convert to fraction form
    687,942.76/949,384.76 = 382,024.26/x
  3. Step 3: Cross multiply
    687,942.76x = 949,384.76 × 382,024.26
  4. Step 4: Simplify right side
    687,942.76x = 362,688,012,505.34
  5. Step 5: Solve for x
    x = 362,688,012,505.34/687,942.76
  6. Step 6: Final answer
    x = 527,206.67

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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.