Home / 765,807.08-1,056,796.27-479,485.04

Finding the Fourth Proportional to 765,807.08, 1,056,796.27 and 479,485.04

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Solution

The fourth proportional to 765,807.08, 1,056,796.27 and 479,485.04 is: 661,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,807.08 : 1,056,796.27 = 479,485.04 : x
  2. Step 2: Convert to fraction form
    765,807.08/1,056,796.27 = 479,485.04/x
  3. Step 3: Cross multiply
    765,807.08x = 1,056,796.27 × 479,485.04
  4. Step 4: Simplify right side
    765,807.08x = 506,717,995,310.11
  5. Step 5: Solve for x
    x = 506,717,995,310.11/765,807.08
  6. Step 6: Final answer
    x = 661,678.39

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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.