Home / 740,302.29-1,021,617.51-400,770.54

Finding the Fourth Proportional to 740,302.29, 1,021,617.51 and 400,770.54

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Solution

The fourth proportional to 740,302.29, 1,021,617.51 and 400,770.54 is: 553,063.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,302.29 : 1,021,617.51 = 400,770.54 : x
  2. Step 2: Convert to fraction form
    740,302.29/1,021,617.51 = 400,770.54/x
  3. Step 3: Cross multiply
    740,302.29x = 1,021,617.51 × 400,770.54
  4. Step 4: Simplify right side
    740,302.29x = 409,434,201,156.16
  5. Step 5: Solve for x
    x = 409,434,201,156.16/740,302.29
  6. Step 6: Final answer
    x = 553,063.53

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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.