Home / 691,731.46-1,030,720.64-616,271.73

Finding the Fourth Proportional to 691,731.46, 1,030,720.64 and 616,271.73

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Solution

The fourth proportional to 691,731.46, 1,030,720.64 and 616,271.73 is: 918,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,731.46 : 1,030,720.64 = 616,271.73 : x
  2. Step 2: Convert to fraction form
    691,731.46/1,030,720.64 = 616,271.73/x
  3. Step 3: Cross multiply
    691,731.46x = 1,030,720.64 × 616,271.73
  4. Step 4: Simplify right side
    691,731.46x = 635,203,991,959.51
  5. Step 5: Solve for x
    x = 635,203,991,959.51/691,731.46
  6. Step 6: Final answer
    x = 918,281.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.