Home / 747,485.25-1,031,515.25-407,955.93

Finding the Fourth Proportional to 747,485.25, 1,031,515.25 and 407,955.93

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Solution

The fourth proportional to 747,485.25, 1,031,515.25 and 407,955.93 is: 562,971.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,485.25 : 1,031,515.25 = 407,955.93 : x
  2. Step 2: Convert to fraction form
    747,485.25/1,031,515.25 = 407,955.93/x
  3. Step 3: Cross multiply
    747,485.25x = 1,031,515.25 × 407,955.93
  4. Step 4: Simplify right side
    747,485.25x = 420,812,757,965.36
  5. Step 5: Solve for x
    x = 420,812,757,965.36/747,485.25
  6. Step 6: Final answer
    x = 562,971.32

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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.