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Finding the Fourth Proportional to 497,907.36, 687,109.02 and 283,047.45

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Solution

The fourth proportional to 497,907.36, 687,109.02 and 283,047.45 is: 390,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,907.36 : 687,109.02 = 283,047.45 : x
  2. Step 2: Convert to fraction form
    497,907.36/687,109.02 = 283,047.45/x
  3. Step 3: Cross multiply
    497,907.36x = 687,109.02 × 283,047.45
  4. Step 4: Simplify right side
    497,907.36x = 194,484,455,983.00
  5. Step 5: Solve for x
    x = 194,484,455,983.00/497,907.36
  6. Step 6: Final answer
    x = 390,603.70

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1.5x scale

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.