Home / 720,020.32-1,077,686.74-530,406.20

Finding the Fourth Proportional to 720,020.32, 1,077,686.74 and 530,406.20

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Solution

The fourth proportional to 720,020.32, 1,077,686.74 and 530,406.20 is: 793,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,020.32 : 1,077,686.74 = 530,406.20 : x
  2. Step 2: Convert to fraction form
    720,020.32/1,077,686.74 = 530,406.20/x
  3. Step 3: Cross multiply
    720,020.32x = 1,077,686.74 × 530,406.20
  4. Step 4: Simplify right side
    720,020.32x = 571,611,728,553.79
  5. Step 5: Solve for x
    x = 571,611,728,553.79/720,020.32
  6. Step 6: Final answer
    x = 793,882.77

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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.