Home / 1,590,285.34-2,385,417.06-643,642.39

Finding the Fourth Proportional to 1,590,285.34, 2,385,417.06 and 643,642.39

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Solution

The fourth proportional to 1,590,285.34, 2,385,417.06 and 643,642.39 is: 965,459.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,285.34 : 2,385,417.06 = 643,642.39 : x
  2. Step 2: Convert to fraction form
    1,590,285.34/2,385,417.06 = 643,642.39/x
  3. Step 3: Cross multiply
    1,590,285.34x = 2,385,417.06 × 643,642.39
  4. Step 4: Simplify right side
    1,590,285.34x = 1,535,355,537,645.17
  5. Step 5: Solve for x
    x = 1,535,355,537,645.17/1,590,285.34
  6. Step 6: Final answer
    x = 965,459.15

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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.