Home / 734,647.19-1,013,778.99-407,980.94

Finding the Fourth Proportional to 734,647.19, 1,013,778.99 and 407,980.94

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Solution

The fourth proportional to 734,647.19, 1,013,778.99 and 407,980.94 is: 562,994.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,647.19 : 1,013,778.99 = 407,980.94 : x
  2. Step 2: Convert to fraction form
    734,647.19/1,013,778.99 = 407,980.94/x
  3. Step 3: Cross multiply
    734,647.19x = 1,013,778.99 × 407,980.94
  4. Step 4: Simplify right side
    734,647.19x = 413,602,500,223.56
  5. Step 5: Solve for x
    x = 413,602,500,223.56/734,647.19
  6. Step 6: Final answer
    x = 562,994.74

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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.