Home / 390,976.50-584,038.94-283,507.32

Finding the Fourth Proportional to 390,976.50, 584,038.94 and 283,507.32

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Solution

The fourth proportional to 390,976.50, 584,038.94 and 283,507.32 is: 423,501.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,976.50 : 584,038.94 = 283,507.32 : x
  2. Step 2: Convert to fraction form
    390,976.50/584,038.94 = 283,507.32/x
  3. Step 3: Cross multiply
    390,976.50x = 584,038.94 × 283,507.32
  4. Step 4: Simplify right side
    390,976.50x = 165,579,314,655.04
  5. Step 5: Solve for x
    x = 165,579,314,655.04/390,976.50
  6. Step 6: Final answer
    x = 423,501.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.