Home / 943,138.64-1,301,531.32-513,421.92

Finding the Fourth Proportional to 943,138.64, 1,301,531.32 and 513,421.92

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Solution

The fourth proportional to 943,138.64, 1,301,531.32 and 513,421.92 is: 708,522.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,138.64 : 1,301,531.32 = 513,421.92 : x
  2. Step 2: Convert to fraction form
    943,138.64/1,301,531.32 = 513,421.92/x
  3. Step 3: Cross multiply
    943,138.64x = 1,301,531.32 × 513,421.92
  4. Step 4: Simplify right side
    943,138.64x = 668,234,709,254.53
  5. Step 5: Solve for x
    x = 668,234,709,254.53/943,138.64
  6. Step 6: Final answer
    x = 708,522.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.