Home / 774,647.84-1,068,945.86-430,461.90

Finding the Fourth Proportional to 774,647.84, 1,068,945.86 and 430,461.90

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Solution

The fourth proportional to 774,647.84, 1,068,945.86 and 430,461.90 is: 593,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,647.84 : 1,068,945.86 = 430,461.90 : x
  2. Step 2: Convert to fraction form
    774,647.84/1,068,945.86 = 430,461.90/x
  3. Step 3: Cross multiply
    774,647.84x = 1,068,945.86 × 430,461.90
  4. Step 4: Simplify right side
    774,647.84x = 460,140,466,968.89
  5. Step 5: Solve for x
    x = 460,140,466,968.89/774,647.84
  6. Step 6: Final answer
    x = 593,999.55

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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.