Home / 781,848.30-1,079,066.43-495,395.04

Finding the Fourth Proportional to 781,848.30, 1,079,066.43 and 495,395.04

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Solution

The fourth proportional to 781,848.30, 1,079,066.43 and 495,395.04 is: 683,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,848.30 : 1,079,066.43 = 495,395.04 : x
  2. Step 2: Convert to fraction form
    781,848.30/1,079,066.43 = 495,395.04/x
  3. Step 3: Cross multiply
    781,848.30x = 1,079,066.43 × 495,395.04
  4. Step 4: Simplify right side
    781,848.30x = 534,564,157,252.51
  5. Step 5: Solve for x
    x = 534,564,157,252.51/781,848.30
  6. Step 6: Final answer
    x = 683,718.51

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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.