Home / 1,590,284.46-2,385,415.75-643,641.51

Finding the Fourth Proportional to 1,590,284.46, 2,385,415.75 and 643,641.51

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Solution

The fourth proportional to 1,590,284.46, 2,385,415.75 and 643,641.51 is: 965,457.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,284.46 : 2,385,415.75 = 643,641.51 : x
  2. Step 2: Convert to fraction form
    1,590,284.46/2,385,415.75 = 643,641.51/x
  3. Step 3: Cross multiply
    1,590,284.46x = 2,385,415.75 × 643,641.51
  4. Step 4: Simplify right side
    1,590,284.46x = 1,535,352,595,307.78
  5. Step 5: Solve for x
    x = 1,535,352,595,307.78/1,590,284.46
  6. Step 6: Final answer
    x = 965,457.84

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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.