Home / 679,157.76-1,018,386.56-304,860.16

Finding the Fourth Proportional to 679,157.76, 1,018,386.56 and 304,860.16

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Solution

The fourth proportional to 679,157.76, 1,018,386.56 and 304,860.16 is: 457,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,157.76 : 1,018,386.56 = 304,860.16 : x
  2. Step 2: Convert to fraction form
    679,157.76/1,018,386.56 = 304,860.16/x
  3. Step 3: Cross multiply
    679,157.76x = 1,018,386.56 × 304,860.16
  4. Step 4: Simplify right side
    679,157.76x = 310,465,489,623.45
  5. Step 5: Solve for x
    x = 310,465,489,623.45/679,157.76
  6. Step 6: Final answer
    x = 457,133.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.