Home / 781,033.96-1,075,900.32-665,937.62

Finding the Fourth Proportional to 781,033.96, 1,075,900.32 and 665,937.62

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Solution

The fourth proportional to 781,033.96, 1,075,900.32 and 665,937.62 is: 917,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,033.96 : 1,075,900.32 = 665,937.62 : x
  2. Step 2: Convert to fraction form
    781,033.96/1,075,900.32 = 665,937.62/x
  3. Step 3: Cross multiply
    781,033.96x = 1,075,900.32 × 665,937.62
  4. Step 4: Simplify right side
    781,033.96x = 716,482,497,113.16
  5. Step 5: Solve for x
    x = 716,482,497,113.16/781,033.96
  6. Step 6: Final answer
    x = 917,351.27

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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.