Home / 956,428.54-1,319,845.70-520,837.20

Finding the Fourth Proportional to 956,428.54, 1,319,845.70 and 520,837.20

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Solution

The fourth proportional to 956,428.54, 1,319,845.70 and 520,837.20 is: 718,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,428.54 : 1,319,845.70 = 520,837.20 : x
  2. Step 2: Convert to fraction form
    956,428.54/1,319,845.70 = 520,837.20/x
  3. Step 3: Cross multiply
    956,428.54x = 1,319,845.70 × 520,837.20
  4. Step 4: Simplify right side
    956,428.54x = 687,424,740,122.13
  5. Step 5: Solve for x
    x = 687,424,740,122.13/956,428.54
  6. Step 6: Final answer
    x = 718,741.35

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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.