Home / 759,545.96-1,048,121.70-420,011.24

Finding the Fourth Proportional to 759,545.96, 1,048,121.70 and 420,011.24

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Solution

The fourth proportional to 759,545.96, 1,048,121.70 and 420,011.24 is: 579,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,545.96 : 1,048,121.70 = 420,011.24 : x
  2. Step 2: Convert to fraction form
    759,545.96/1,048,121.70 = 420,011.24/x
  3. Step 3: Cross multiply
    759,545.96x = 1,048,121.70 × 420,011.24
  4. Step 4: Simplify right side
    759,545.96x = 440,222,894,887.91
  5. Step 5: Solve for x
    x = 440,222,894,887.91/759,545.96
  6. Step 6: Final answer
    x = 579,586.91

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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.