Home / 740,503.28-1,021,894.56-400,971.53

Finding the Fourth Proportional to 740,503.28, 1,021,894.56 and 400,971.53

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Solution

The fourth proportional to 740,503.28, 1,021,894.56 and 400,971.53 is: 553,340.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,503.28 : 1,021,894.56 = 400,971.53 : x
  2. Step 2: Convert to fraction form
    740,503.28/1,021,894.56 = 400,971.53/x
  3. Step 3: Cross multiply
    740,503.28x = 1,021,894.56 × 400,971.53
  4. Step 4: Simplify right side
    740,503.28x = 409,750,627,776.61
  5. Step 5: Solve for x
    x = 409,750,627,776.61/740,503.28
  6. Step 6: Final answer
    x = 553,340.73

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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.