Home / 740,330.88-1,021,657.04-400,799.28

Finding the Fourth Proportional to 740,330.88, 1,021,657.04 and 400,799.28

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Solution

The fourth proportional to 740,330.88, 1,021,657.04 and 400,799.28 is: 553,103.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,330.88 : 1,021,657.04 = 400,799.28 : x
  2. Step 2: Convert to fraction form
    740,330.88/1,021,657.04 = 400,799.28/x
  3. Step 3: Cross multiply
    740,330.88x = 1,021,657.04 × 400,799.28
  4. Step 4: Simplify right side
    740,330.88x = 409,479,406,038.93
  5. Step 5: Solve for x
    x = 409,479,406,038.93/740,330.88
  6. Step 6: Final answer
    x = 553,103.24

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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.