Home / 740,345.55-1,110,962.61-319,621.02

Finding the Fourth Proportional to 740,345.55, 1,110,962.61 and 319,621.02

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Solution

The fourth proportional to 740,345.55, 1,110,962.61 and 319,621.02 is: 479,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,345.55 : 1,110,962.61 = 319,621.02 : x
  2. Step 2: Convert to fraction form
    740,345.55/1,110,962.61 = 319,621.02/x
  3. Step 3: Cross multiply
    740,345.55x = 1,110,962.61 × 319,621.02
  4. Step 4: Simplify right side
    740,345.55x = 355,087,002,590.06
  5. Step 5: Solve for x
    x = 355,087,002,590.06/740,345.55
  6. Step 6: Final answer
    x = 479,623.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.