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Finding the Fourth Proportional to 620,459.90, 930,862.65 and 304,927.10

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Solution

The fourth proportional to 620,459.90, 930,862.65 and 304,927.10 is: 457,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,459.90 : 930,862.65 = 304,927.10 : x
  2. Step 2: Convert to fraction form
    620,459.90/930,862.65 = 304,927.10/x
  3. Step 3: Cross multiply
    620,459.90x = 930,862.65 × 304,927.10
  4. Step 4: Simplify right side
    620,459.90x = 283,845,248,362.82
  5. Step 5: Solve for x
    x = 283,845,248,362.82/620,459.90
  6. Step 6: Final answer
    x = 457,475.57

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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.