Home / 643,030.65-964,348.95-444,626.01

Finding the Fourth Proportional to 643,030.65, 964,348.95 and 444,626.01

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Solution

The fourth proportional to 643,030.65, 964,348.95 and 444,626.01 is: 666,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,030.65 : 964,348.95 = 444,626.01 : x
  2. Step 2: Convert to fraction form
    643,030.65/964,348.95 = 444,626.01/x
  3. Step 3: Cross multiply
    643,030.65x = 964,348.95 × 444,626.01
  4. Step 4: Simplify right side
    643,030.65x = 428,774,625,886.19
  5. Step 5: Solve for x
    x = 428,774,625,886.19/643,030.65
  6. Step 6: Final answer
    x = 666,802.78

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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.