Home / 1,210,869.30-1,815,007.95-411,410.10

Finding the Fourth Proportional to 1,210,869.30, 1,815,007.95 and 411,410.10

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Solution

The fourth proportional to 1,210,869.30, 1,815,007.95 and 411,410.10 is: 616,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,869.30 : 1,815,007.95 = 411,410.10 : x
  2. Step 2: Convert to fraction form
    1,210,869.30/1,815,007.95 = 411,410.10/x
  3. Step 3: Cross multiply
    1,210,869.30x = 1,815,007.95 × 411,410.10
  4. Step 4: Simplify right side
    1,210,869.30x = 746,712,602,210.30
  5. Step 5: Solve for x
    x = 746,712,602,210.30/1,210,869.30
  6. Step 6: Final answer
    x = 616,674.82

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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.