Home / 935,345.07-1,289,915.40-612,938.07

Finding the Fourth Proportional to 935,345.07, 1,289,915.40 and 612,938.07

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Solution

The fourth proportional to 935,345.07, 1,289,915.40 and 612,938.07 is: 845,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,345.07 : 1,289,915.40 = 612,938.07 : x
  2. Step 2: Convert to fraction form
    935,345.07/1,289,915.40 = 612,938.07/x
  3. Step 3: Cross multiply
    935,345.07x = 1,289,915.40 × 612,938.07
  4. Step 4: Simplify right side
    935,345.07x = 790,638,255,739.28
  5. Step 5: Solve for x
    x = 790,638,255,739.28/935,345.07
  6. Step 6: Final answer
    x = 845,290.45

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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.