Home / 779,311.72-1,075,439.64-435,152.98

Finding the Fourth Proportional to 779,311.72, 1,075,439.64 and 435,152.98

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Solution

The fourth proportional to 779,311.72, 1,075,439.64 and 435,152.98 is: 600,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,311.72 : 1,075,439.64 = 435,152.98 : x
  2. Step 2: Convert to fraction form
    779,311.72/1,075,439.64 = 435,152.98/x
  3. Step 3: Cross multiply
    779,311.72x = 1,075,439.64 × 435,152.98
  4. Step 4: Simplify right side
    779,311.72x = 467,980,764,156.13
  5. Step 5: Solve for x
    x = 467,980,764,156.13/779,311.72
  6. Step 6: Final answer
    x = 600,505.23

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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.