Home / 912,237.28-1,258,888.94-509,829.28

Finding the Fourth Proportional to 912,237.28, 1,258,888.94 and 509,829.28

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Solution

The fourth proportional to 912,237.28, 1,258,888.94 and 509,829.28 is: 703,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,237.28 : 1,258,888.94 = 509,829.28 : x
  2. Step 2: Convert to fraction form
    912,237.28/1,258,888.94 = 509,829.28/x
  3. Step 3: Cross multiply
    912,237.28x = 1,258,888.94 × 509,829.28
  4. Step 4: Simplify right side
    912,237.28x = 641,818,441,880.16
  5. Step 5: Solve for x
    x = 641,818,441,880.16/912,237.28
  6. Step 6: Final answer
    x = 703,565.24

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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.