Home / 959,813.48-1,439,572.26-320,128.40

Finding the Fourth Proportional to 959,813.48, 1,439,572.26 and 320,128.40

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Solution

The fourth proportional to 959,813.48, 1,439,572.26 and 320,128.40 is: 480,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,813.48 : 1,439,572.26 = 320,128.40 : x
  2. Step 2: Convert to fraction form
    959,813.48/1,439,572.26 = 320,128.40/x
  3. Step 3: Cross multiply
    959,813.48x = 1,439,572.26 × 320,128.40
  4. Step 4: Simplify right side
    959,813.48x = 460,847,964,278.18
  5. Step 5: Solve for x
    x = 460,847,964,278.18/959,813.48
  6. Step 6: Final answer
    x = 480,143.25

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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.