Home / 926,430.40-1,389,645.60-912,433.60

Finding the Fourth Proportional to 926,430.40, 1,389,645.60 and 912,433.60

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Solution

The fourth proportional to 926,430.40, 1,389,645.60 and 912,433.60 is: 1,368,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,430.40 : 1,389,645.60 = 912,433.60 : x
  2. Step 2: Convert to fraction form
    926,430.40/1,389,645.60 = 912,433.60/x
  3. Step 3: Cross multiply
    926,430.40x = 1,389,645.60 × 912,433.60
  4. Step 4: Simplify right side
    926,430.40x = 1,267,959,337,532.16
  5. Step 5: Solve for x
    x = 1,267,959,337,532.16/926,430.40
  6. Step 6: Final answer
    x = 1,368,650.40

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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.