Home / 841,870.01-1,262,815.95-280,904.51

Finding the Fourth Proportional to 841,870.01, 1,262,815.95 and 280,904.51

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Solution

The fourth proportional to 841,870.01, 1,262,815.95 and 280,904.51 is: 421,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,870.01 : 1,262,815.95 = 280,904.51 : x
  2. Step 2: Convert to fraction form
    841,870.01/1,262,815.95 = 280,904.51/x
  3. Step 3: Cross multiply
    841,870.01x = 1,262,815.95 × 280,904.51
  4. Step 4: Simplify right side
    841,870.01x = 354,730,689,340.86
  5. Step 5: Solve for x
    x = 354,730,689,340.86/841,870.01
  6. Step 6: Final answer
    x = 421,360.41

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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.