Home / 885,315.42-1,221,536.94-522,544.74

Finding the Fourth Proportional to 885,315.42, 1,221,536.94 and 522,544.74

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Solution

The fourth proportional to 885,315.42, 1,221,536.94 and 522,544.74 is: 720,994.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,315.42 : 1,221,536.94 = 522,544.74 : x
  2. Step 2: Convert to fraction form
    885,315.42/1,221,536.94 = 522,544.74/x
  3. Step 3: Cross multiply
    885,315.42x = 1,221,536.94 × 522,544.74
  4. Step 4: Simplify right side
    885,315.42x = 638,307,702,712.70
  5. Step 5: Solve for x
    x = 638,307,702,712.70/885,315.42
  6. Step 6: Final answer
    x = 720,994.67

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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.