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Finding the Fourth Proportional to 804,689.42, 1,110,009.42 and 502,358.54

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Solution

The fourth proportional to 804,689.42, 1,110,009.42 and 502,358.54 is: 692,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,689.42 : 1,110,009.42 = 502,358.54 : x
  2. Step 2: Convert to fraction form
    804,689.42/1,110,009.42 = 502,358.54/x
  3. Step 3: Cross multiply
    804,689.42x = 1,110,009.42 × 502,358.54
  4. Step 4: Simplify right side
    804,689.42x = 557,622,711,617.45
  5. Step 5: Solve for x
    x = 557,622,711,617.45/804,689.42
  6. Step 6: Final answer
    x = 692,966.38

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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.