Home / 910,539.60-1,365,809.40-644,600.40

Finding the Fourth Proportional to 910,539.60, 1,365,809.40 and 644,600.40

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Solution

The fourth proportional to 910,539.60, 1,365,809.40 and 644,600.40 is: 966,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,539.60 : 1,365,809.40 = 644,600.40 : x
  2. Step 2: Convert to fraction form
    910,539.60/1,365,809.40 = 644,600.40/x
  3. Step 3: Cross multiply
    910,539.60x = 1,365,809.40 × 644,600.40
  4. Step 4: Simplify right side
    910,539.60x = 880,401,285,563.76
  5. Step 5: Solve for x
    x = 880,401,285,563.76/910,539.60
  6. Step 6: Final answer
    x = 966,900.60

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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.