Home / 390,848.49-539,554.77-294,088.32

Finding the Fourth Proportional to 390,848.49, 539,554.77 and 294,088.32

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Solution

The fourth proportional to 390,848.49, 539,554.77 and 294,088.32 is: 405,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,848.49 : 539,554.77 = 294,088.32 : x
  2. Step 2: Convert to fraction form
    390,848.49/539,554.77 = 294,088.32/x
  3. Step 3: Cross multiply
    390,848.49x = 539,554.77 × 294,088.32
  4. Step 4: Simplify right side
    390,848.49x = 158,676,755,857.29
  5. Step 5: Solve for x
    x = 158,676,755,857.29/390,848.49
  6. Step 6: Final answer
    x = 405,980.22

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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.