Home / 747,014.81-1,030,878.29-407,480.63

Finding the Fourth Proportional to 747,014.81, 1,030,878.29 and 407,480.63

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Solution

The fourth proportional to 747,014.81, 1,030,878.29 and 407,480.63 is: 562,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,014.81 : 1,030,878.29 = 407,480.63 : x
  2. Step 2: Convert to fraction form
    747,014.81/1,030,878.29 = 407,480.63/x
  3. Step 3: Cross multiply
    747,014.81x = 1,030,878.29 × 407,480.63
  4. Step 4: Simplify right side
    747,014.81x = 420,062,930,926.83
  5. Step 5: Solve for x
    x = 420,062,930,926.83/747,014.81
  6. Step 6: Final answer
    x = 562,322.10

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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.