Home / 771,254.88-1,154,870.28-620,672.64

Finding the Fourth Proportional to 771,254.88, 1,154,870.28 and 620,672.64

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Solution

The fourth proportional to 771,254.88, 1,154,870.28 and 620,672.64 is: 929,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,254.88 : 1,154,870.28 = 620,672.64 : x
  2. Step 2: Convert to fraction form
    771,254.88/1,154,870.28 = 620,672.64/x
  3. Step 3: Cross multiply
    771,254.88x = 1,154,870.28 × 620,672.64
  4. Step 4: Simplify right side
    771,254.88x = 716,796,385,545.14
  5. Step 5: Solve for x
    x = 716,796,385,545.14/771,254.88
  6. Step 6: Final answer
    x = 929,389.76

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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.