Home / 855,715.89-1,180,842.99-468,457.05

Finding the Fourth Proportional to 855,715.89, 1,180,842.99 and 468,457.05

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Solution

The fourth proportional to 855,715.89, 1,180,842.99 and 468,457.05 is: 646,446.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,715.89 : 1,180,842.99 = 468,457.05 : x
  2. Step 2: Convert to fraction form
    855,715.89/1,180,842.99 = 468,457.05/x
  3. Step 3: Cross multiply
    855,715.89x = 1,180,842.99 × 468,457.05
  4. Step 4: Simplify right side
    855,715.89x = 553,174,223,608.58
  5. Step 5: Solve for x
    x = 553,174,223,608.58/855,715.89
  6. Step 6: Final answer
    x = 646,446.13

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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.