Home / 743,509.45-1,114,637.23-322,468.21

Finding the Fourth Proportional to 743,509.45, 1,114,637.23 and 322,468.21

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Solution

The fourth proportional to 743,509.45, 1,114,637.23 and 322,468.21 is: 483,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,509.45 : 1,114,637.23 = 322,468.21 : x
  2. Step 2: Convert to fraction form
    743,509.45/1,114,637.23 = 322,468.21/x
  3. Step 3: Cross multiply
    743,509.45x = 1,114,637.23 × 322,468.21
  4. Step 4: Simplify right side
    743,509.45x = 359,435,072,357.46
  5. Step 5: Solve for x
    x = 359,435,072,357.46/743,509.45
  6. Step 6: Final answer
    x = 483,430.40

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Double scale
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1.5x scale

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.