Home / 900,133.45-1,242,496.97-518,312.41

Finding the Fourth Proportional to 900,133.45, 1,242,496.97 and 518,312.41

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Solution

The fourth proportional to 900,133.45, 1,242,496.97 and 518,312.41 is: 715,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,133.45 : 1,242,496.97 = 518,312.41 : x
  2. Step 2: Convert to fraction form
    900,133.45/1,242,496.97 = 518,312.41/x
  3. Step 3: Cross multiply
    900,133.45x = 1,242,496.97 × 518,312.41
  4. Step 4: Simplify right side
    900,133.45x = 644,001,595,184.27
  5. Step 5: Solve for x
    x = 644,001,595,184.27/900,133.45
  6. Step 6: Final answer
    x = 715,451.24

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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.