Home / 740,016.61-1,021,220.91-400,484.86

Finding the Fourth Proportional to 740,016.61, 1,021,220.91 and 400,484.86

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Solution

The fourth proportional to 740,016.61, 1,021,220.91 and 400,484.86 is: 552,668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,016.61 : 1,021,220.91 = 400,484.86 : x
  2. Step 2: Convert to fraction form
    740,016.61/1,021,220.91 = 400,484.86/x
  3. Step 3: Cross multiply
    740,016.61x = 1,021,220.91 × 400,484.86
  4. Step 4: Simplify right side
    740,016.61x = 408,983,506,061.89
  5. Step 5: Solve for x
    x = 408,983,506,061.89/740,016.61
  6. Step 6: Final answer
    x = 552,668.01

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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.