Home / 876,569.49-1,209,684.78-484,101.23

Finding the Fourth Proportional to 876,569.49, 1,209,684.78 and 484,101.23

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Solution

The fourth proportional to 876,569.49, 1,209,684.78 and 484,101.23 is: 668,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,569.49 : 1,209,684.78 = 484,101.23 : x
  2. Step 2: Convert to fraction form
    876,569.49/1,209,684.78 = 484,101.23/x
  3. Step 3: Cross multiply
    876,569.49x = 1,209,684.78 × 484,101.23
  4. Step 4: Simplify right side
    876,569.49x = 585,609,883,861.86
  5. Step 5: Solve for x
    x = 585,609,883,861.86/876,569.49
  6. Step 6: Final answer
    x = 668,070.12

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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.