Home / 1,389,699.04-2,084,590.68-478,870.24

Finding the Fourth Proportional to 1,389,699.04, 2,084,590.68 and 478,870.24

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Solution

The fourth proportional to 1,389,699.04, 2,084,590.68 and 478,870.24 is: 718,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,699.04 : 2,084,590.68 = 478,870.24 : x
  2. Step 2: Convert to fraction form
    1,389,699.04/2,084,590.68 = 478,870.24/x
  3. Step 3: Cross multiply
    1,389,699.04x = 2,084,590.68 × 478,870.24
  4. Step 4: Simplify right side
    1,389,699.04x = 998,248,439,233.36
  5. Step 5: Solve for x
    x = 998,248,439,233.36/1,389,699.04
  6. Step 6: Final answer
    x = 718,319.87

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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.