Home / 1,464,904.10-2,021,520.57-811,503.20

Finding the Fourth Proportional to 1,464,904.10, 2,021,520.57 and 811,503.20

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Solution

The fourth proportional to 1,464,904.10, 2,021,520.57 and 811,503.20 is: 1,119,848.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464,904.10 : 2,021,520.57 = 811,503.20 : x
  2. Step 2: Convert to fraction form
    1,464,904.10/2,021,520.57 = 811,503.20/x
  3. Step 3: Cross multiply
    1,464,904.10x = 2,021,520.57 × 811,503.20
  4. Step 4: Simplify right side
    1,464,904.10x = 1,640,470,411,420.82
  5. Step 5: Solve for x
    x = 1,640,470,411,420.82/1,464,904.10
  6. Step 6: Final answer
    x = 1,119,848.33

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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.