Home / 909,355.65-1,254,910.88-522,196.50

Finding the Fourth Proportional to 909,355.65, 1,254,910.88 and 522,196.50

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Solution

The fourth proportional to 909,355.65, 1,254,910.88 and 522,196.50 is: 720,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,355.65 : 1,254,910.88 = 522,196.50 : x
  2. Step 2: Convert to fraction form
    909,355.65/1,254,910.88 = 522,196.50/x
  3. Step 3: Cross multiply
    909,355.65x = 1,254,910.88 × 522,196.50
  4. Step 4: Simplify right side
    909,355.65x = 655,310,066,736.94
  5. Step 5: Solve for x
    x = 655,310,066,736.94/909,355.65
  6. Step 6: Final answer
    x = 720,631.21

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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.