Home / 1,355,937.18-1,870,901.00-782,645.21

Finding the Fourth Proportional to 1,355,937.18, 1,870,901.00 and 782,645.21

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Solution

The fourth proportional to 1,355,937.18, 1,870,901.00 and 782,645.21 is: 1,079,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,937.18 : 1,870,901.00 = 782,645.21 : x
  2. Step 2: Convert to fraction form
    1,355,937.18/1,870,901.00 = 782,645.21/x
  3. Step 3: Cross multiply
    1,355,937.18x = 1,870,901.00 × 782,645.21
  4. Step 4: Simplify right side
    1,355,937.18x = 1,464,251,698,636.32
  5. Step 5: Solve for x
    x = 1,464,251,698,636.32/1,355,937.18
  6. Step 6: Final answer
    x = 1,079,881.66

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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.