Home / 740,481-1,021,864.58-400,948.44

Finding the Fourth Proportional to 740,481, 1,021,864.58 and 400,948.44

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Solution

The fourth proportional to 740,481, 1,021,864.58 and 400,948.44 is: 553,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,481 : 1,021,864.58 = 400,948.44 : x
  2. Step 2: Convert to fraction form
    740,481/1,021,864.58 = 400,948.44/x
  3. Step 3: Cross multiply
    740,481x = 1,021,864.58 × 400,948.44
  4. Step 4: Simplify right side
    740,481x = 409,715,009,242.26
  5. Step 5: Solve for x
    x = 409,715,009,242.26/740,481
  6. Step 6: Final answer
    x = 553,309.28

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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.