Home / 767,699.28-1,059,419.09-423,549.71

Finding the Fourth Proportional to 767,699.28, 1,059,419.09 and 423,549.71

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Solution

The fourth proportional to 767,699.28, 1,059,419.09 and 423,549.71 is: 584,495.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,699.28 : 1,059,419.09 = 423,549.71 : x
  2. Step 2: Convert to fraction form
    767,699.28/1,059,419.09 = 423,549.71/x
  3. Step 3: Cross multiply
    767,699.28x = 1,059,419.09 × 423,549.71
  4. Step 4: Simplify right side
    767,699.28x = 448,716,648,337.96
  5. Step 5: Solve for x
    x = 448,716,648,337.96/767,699.28
  6. Step 6: Final answer
    x = 584,495.34

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Double scale
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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.