Home / 712,505.71-1,069,478.73-631,980.70

Finding the Fourth Proportional to 712,505.71, 1,069,478.73 and 631,980.70

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Solution

The fourth proportional to 712,505.71, 1,069,478.73 and 631,980.70 is: 948,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,505.71 : 1,069,478.73 = 631,980.70 : x
  2. Step 2: Convert to fraction form
    712,505.71/1,069,478.73 = 631,980.70/x
  3. Step 3: Cross multiply
    712,505.71x = 1,069,478.73 × 631,980.70
  4. Step 4: Simplify right side
    712,505.71x = 675,889,916,420.51
  5. Step 5: Solve for x
    x = 675,889,916,420.51/712,505.71
  6. Step 6: Final answer
    x = 948,609.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.