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Finding the Fourth Proportional to 708,903.72, 977,734.26 and 454,278.60

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Solution

The fourth proportional to 708,903.72, 977,734.26 and 454,278.60 is: 626,550.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,903.72 : 977,734.26 = 454,278.60 : x
  2. Step 2: Convert to fraction form
    708,903.72/977,734.26 = 454,278.60/x
  3. Step 3: Cross multiply
    708,903.72x = 977,734.26 × 454,278.60
  4. Step 4: Simplify right side
    708,903.72x = 444,163,750,804.84
  5. Step 5: Solve for x
    x = 444,163,750,804.84/708,903.72
  6. Step 6: Final answer
    x = 626,550.18

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1.5x scale

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.