Home / 665,897.54-918,985.50-375,535.08

Finding the Fourth Proportional to 665,897.54, 918,985.50 and 375,535.08

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Solution

The fourth proportional to 665,897.54, 918,985.50 and 375,535.08 is: 518,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,897.54 : 918,985.50 = 375,535.08 : x
  2. Step 2: Convert to fraction form
    665,897.54/918,985.50 = 375,535.08/x
  3. Step 3: Cross multiply
    665,897.54x = 918,985.50 × 375,535.08
  4. Step 4: Simplify right side
    665,897.54x = 345,111,293,261.34
  5. Step 5: Solve for x
    x = 345,111,293,261.34/665,897.54
  6. Step 6: Final answer
    x = 518,264.86

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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.