Home / 740,569.92-1,021,986.24-401,038.08

Finding the Fourth Proportional to 740,569.92, 1,021,986.24 and 401,038.08

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Solution

The fourth proportional to 740,569.92, 1,021,986.24 and 401,038.08 is: 553,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,569.92 : 1,021,986.24 = 401,038.08 : x
  2. Step 2: Convert to fraction form
    740,569.92/1,021,986.24 = 401,038.08/x
  3. Step 3: Cross multiply
    740,569.92x = 1,021,986.24 × 401,038.08
  4. Step 4: Simplify right side
    740,569.92x = 409,855,399,476.02
  5. Step 5: Solve for x
    x = 409,855,399,476.02/740,569.92
  6. Step 6: Final answer
    x = 553,432.42

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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.