Home / 1,402,332.45-2,101,837.90-643,534.35

Finding the Fourth Proportional to 1,402,332.45, 2,101,837.90 and 643,534.35

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Solution

The fourth proportional to 1,402,332.45, 2,101,837.90 and 643,534.35 is: 964,539.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,332.45 : 2,101,837.90 = 643,534.35 : x
  2. Step 2: Convert to fraction form
    1,402,332.45/2,101,837.90 = 643,534.35/x
  3. Step 3: Cross multiply
    1,402,332.45x = 2,101,837.90 × 643,534.35
  4. Step 4: Simplify right side
    1,402,332.45x = 1,352,604,886,781.87
  5. Step 5: Solve for x
    x = 1,352,604,886,781.87/1,402,332.45
  6. Step 6: Final answer
    x = 964,539.39

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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.