Home / 1,262,803.76-1,894,222.05-421,355.51

Finding the Fourth Proportional to 1,262,803.76, 1,894,222.05 and 421,355.51

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Solution

The fourth proportional to 1,262,803.76, 1,894,222.05 and 421,355.51 is: 632,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,803.76 : 1,894,222.05 = 421,355.51 : x
  2. Step 2: Convert to fraction form
    1,262,803.76/1,894,222.05 = 421,355.51/x
  3. Step 3: Cross multiply
    1,262,803.76x = 1,894,222.05 × 421,355.51
  4. Step 4: Simplify right side
    1,262,803.76x = 798,140,897,931.00
  5. Step 5: Solve for x
    x = 798,140,897,931.00/1,262,803.76
  6. Step 6: Final answer
    x = 632,038.74

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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.