Home / 470,111.36-648,855.96-288,918.32

Finding the Fourth Proportional to 470,111.36, 648,855.96 and 288,918.32

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Solution

The fourth proportional to 470,111.36, 648,855.96 and 288,918.32 is: 398,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,111.36 : 648,855.96 = 288,918.32 : x
  2. Step 2: Convert to fraction form
    470,111.36/648,855.96 = 288,918.32/x
  3. Step 3: Cross multiply
    470,111.36x = 648,855.96 × 288,918.32
  4. Step 4: Simplify right side
    470,111.36x = 187,466,373,885.19
  5. Step 5: Solve for x
    x = 187,466,373,885.19/470,111.36
  6. Step 6: Final answer
    x = 398,770.14

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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.