Home / 877,079.88-1,210,345.74-495,142.20

Finding the Fourth Proportional to 877,079.88, 1,210,345.74 and 495,142.20

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Solution

The fourth proportional to 877,079.88, 1,210,345.74 and 495,142.20 is: 683,282.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,079.88 : 1,210,345.74 = 495,142.20 : x
  2. Step 2: Convert to fraction form
    877,079.88/1,210,345.74 = 495,142.20/x
  3. Step 3: Cross multiply
    877,079.88x = 1,210,345.74 × 495,142.20
  4. Step 4: Simplify right side
    877,079.88x = 599,293,252,464.23
  5. Step 5: Solve for x
    x = 599,293,252,464.23/877,079.88
  6. Step 6: Final answer
    x = 683,282.41

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Double scale
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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.