Home / 759,685.52-1,048,381.80-420,176.72

Finding the Fourth Proportional to 759,685.52, 1,048,381.80 and 420,176.72

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Solution

The fourth proportional to 759,685.52, 1,048,381.80 and 420,176.72 is: 579,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,685.52 : 1,048,381.80 = 420,176.72 : x
  2. Step 2: Convert to fraction form
    759,685.52/1,048,381.80 = 420,176.72/x
  3. Step 3: Cross multiply
    759,685.52x = 1,048,381.80 × 420,176.72
  4. Step 4: Simplify right side
    759,685.52x = 440,505,626,031.70
  5. Step 5: Solve for x
    x = 440,505,626,031.70/759,685.52
  6. Step 6: Final answer
    x = 579,852.60

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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.