Home / 907,443.40-1,359,782.70-766,438.60

Finding the Fourth Proportional to 907,443.40, 1,359,782.70 and 766,438.60

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Solution

The fourth proportional to 907,443.40, 1,359,782.70 and 766,438.60 is: 1,148,490.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,443.40 : 1,359,782.70 = 766,438.60 : x
  2. Step 2: Convert to fraction form
    907,443.40/1,359,782.70 = 766,438.60/x
  3. Step 3: Cross multiply
    907,443.40x = 1,359,782.70 × 766,438.60
  4. Step 4: Simplify right side
    907,443.40x = 1,042,189,948,892.22
  5. Step 5: Solve for x
    x = 1,042,189,948,892.22/907,443.40
  6. Step 6: Final answer
    x = 1,148,490.31

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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.