Home / 898,931.72-1,240,518.40-491,033.68

Finding the Fourth Proportional to 898,931.72, 1,240,518.40 and 491,033.68

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Solution

The fourth proportional to 898,931.72, 1,240,518.40 and 491,033.68 is: 677,622.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,931.72 : 1,240,518.40 = 491,033.68 : x
  2. Step 2: Convert to fraction form
    898,931.72/1,240,518.40 = 491,033.68/x
  3. Step 3: Cross multiply
    898,931.72x = 1,240,518.40 × 491,033.68
  4. Step 4: Simplify right side
    898,931.72x = 609,136,310,730.83
  5. Step 5: Solve for x
    x = 609,136,310,730.83/898,931.72
  6. Step 6: Final answer
    x = 677,622.44

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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.