Home / 943,106.82-1,301,487.54-513,390.16

Finding the Fourth Proportional to 943,106.82, 1,301,487.54 and 513,390.16

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Solution

The fourth proportional to 943,106.82, 1,301,487.54 and 513,390.16 is: 708,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,106.82 : 1,301,487.54 = 513,390.16 : x
  2. Step 2: Convert to fraction form
    943,106.82/1,301,487.54 = 513,390.16/x
  3. Step 3: Cross multiply
    943,106.82x = 1,301,487.54 × 513,390.16
  4. Step 4: Simplify right side
    943,106.82x = 668,170,896,398.61
  5. Step 5: Solve for x
    x = 668,170,896,398.61/943,106.82
  6. Step 6: Final answer
    x = 708,478.49

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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.