Home / 557,705.04-769,570.40-315,935.84

Finding the Fourth Proportional to 557,705.04, 769,570.40 and 315,935.84

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Solution

The fourth proportional to 557,705.04, 769,570.40 and 315,935.84 is: 435,956.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,705.04 : 769,570.40 = 315,935.84 : x
  2. Step 2: Convert to fraction form
    557,705.04/769,570.40 = 315,935.84/x
  3. Step 3: Cross multiply
    557,705.04x = 769,570.40 × 315,935.84
  4. Step 4: Simplify right side
    557,705.04x = 243,134,870,763.14
  5. Step 5: Solve for x
    x = 243,134,870,763.14/557,705.04
  6. Step 6: Final answer
    x = 435,956.02

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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.