Home / 740,074.91-1,021,303.35-400,543.16

Finding the Fourth Proportional to 740,074.91, 1,021,303.35 and 400,543.16

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Solution

The fourth proportional to 740,074.91, 1,021,303.35 and 400,543.16 is: 552,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,074.91 : 1,021,303.35 = 400,543.16 : x
  2. Step 2: Convert to fraction form
    740,074.91/1,021,303.35 = 400,543.16/x
  3. Step 3: Cross multiply
    740,074.91x = 1,021,303.35 × 400,543.16
  4. Step 4: Simplify right side
    740,074.91x = 409,076,066,021.07
  5. Step 5: Solve for x
    x = 409,076,066,021.07/740,074.91
  6. Step 6: Final answer
    x = 552,749.54

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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.