Home / 841,555.36-1,262,060.40-280,439.20

Finding the Fourth Proportional to 841,555.36, 1,262,060.40 and 280,439.20

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Solution

The fourth proportional to 841,555.36, 1,262,060.40 and 280,439.20 is: 420,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,555.36 : 1,262,060.40 = 280,439.20 : x
  2. Step 2: Convert to fraction form
    841,555.36/1,262,060.40 = 280,439.20/x
  3. Step 3: Cross multiply
    841,555.36x = 1,262,060.40 × 280,439.20
  4. Step 4: Simplify right side
    841,555.36x = 353,931,208,927.68
  5. Step 5: Solve for x
    x = 353,931,208,927.68/841,555.36
  6. Step 6: Final answer
    x = 420,567.95

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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.