Home / 740,078.91-1,021,308.87-400,547.16

Finding the Fourth Proportional to 740,078.91, 1,021,308.87 and 400,547.16

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Solution

The fourth proportional to 740,078.91, 1,021,308.87 and 400,547.16 is: 552,755.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,078.91 : 1,021,308.87 = 400,547.16 : x
  2. Step 2: Convert to fraction form
    740,078.91/1,021,308.87 = 400,547.16/x
  3. Step 3: Cross multiply
    740,078.91x = 1,021,308.87 × 400,547.16
  4. Step 4: Simplify right side
    740,078.91x = 409,082,367,361.31
  5. Step 5: Solve for x
    x = 409,082,367,361.31/740,078.91
  6. Step 6: Final answer
    x = 552,755.07

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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.