Home / 1,021,808.03-1,532,712.05-390,785.63

Finding the Fourth Proportional to 1,021,808.03, 1,532,712.05 and 390,785.63

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Solution

The fourth proportional to 1,021,808.03, 1,532,712.05 and 390,785.63 is: 586,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,808.03 : 1,532,712.05 = 390,785.63 : x
  2. Step 2: Convert to fraction form
    1,021,808.03/1,532,712.05 = 390,785.63/x
  3. Step 3: Cross multiply
    1,021,808.03x = 1,532,712.05 × 390,785.63
  4. Step 4: Simplify right side
    1,021,808.03x = 598,961,842,113.91
  5. Step 5: Solve for x
    x = 598,961,842,113.91/1,021,808.03
  6. Step 6: Final answer
    x = 586,178.45

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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.