Home / 476,580.51-657,828.54-306,814.50

Finding the Fourth Proportional to 476,580.51, 657,828.54 and 306,814.50

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Solution

The fourth proportional to 476,580.51, 657,828.54 and 306,814.50 is: 423,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,580.51 : 657,828.54 = 306,814.50 : x
  2. Step 2: Convert to fraction form
    476,580.51/657,828.54 = 306,814.50/x
  3. Step 3: Cross multiply
    476,580.51x = 657,828.54 × 306,814.50
  4. Step 4: Simplify right side
    476,580.51x = 201,831,334,585.83
  5. Step 5: Solve for x
    x = 201,831,334,585.83/476,580.51
  6. Step 6: Final answer
    x = 423,498.93

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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.