Home / 759,686.52-1,048,383.18-420,177.72

Finding the Fourth Proportional to 759,686.52, 1,048,383.18 and 420,177.72

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Solution

The fourth proportional to 759,686.52, 1,048,383.18 and 420,177.72 is: 579,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,686.52 : 1,048,383.18 = 420,177.72 : x
  2. Step 2: Convert to fraction form
    759,686.52/1,048,383.18 = 420,177.72/x
  3. Step 3: Cross multiply
    759,686.52x = 1,048,383.18 × 420,177.72
  4. Step 4: Simplify right side
    759,686.52x = 440,507,254,258.75
  5. Step 5: Solve for x
    x = 440,507,254,258.75/759,686.52
  6. Step 6: Final answer
    x = 579,853.98

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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.