Home / 716,947.20-1,075,420.80-492,998.40

Finding the Fourth Proportional to 716,947.20, 1,075,420.80 and 492,998.40

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Solution

The fourth proportional to 716,947.20, 1,075,420.80 and 492,998.40 is: 739,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,947.20 : 1,075,420.80 = 492,998.40 : x
  2. Step 2: Convert to fraction form
    716,947.20/1,075,420.80 = 492,998.40/x
  3. Step 3: Cross multiply
    716,947.20x = 1,075,420.80 × 492,998.40
  4. Step 4: Simplify right side
    716,947.20x = 530,180,733,726.72
  5. Step 5: Solve for x
    x = 530,180,733,726.72/716,947.20
  6. Step 6: Final answer
    x = 739,497.60

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Double scale
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Similar ratio
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1.5x scale

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.