Home / 612,559.89-845,333.34-340,621.95

Finding the Fourth Proportional to 612,559.89, 845,333.34 and 340,621.95

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Solution

The fourth proportional to 612,559.89, 845,333.34 and 340,621.95 is: 470,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,559.89 : 845,333.34 = 340,621.95 : x
  2. Step 2: Convert to fraction form
    612,559.89/845,333.34 = 340,621.95/x
  3. Step 3: Cross multiply
    612,559.89x = 845,333.34 × 340,621.95
  4. Step 4: Simplify right side
    612,559.89x = 287,939,090,670.81
  5. Step 5: Solve for x
    x = 287,939,090,670.81/612,559.89
  6. Step 6: Final answer
    x = 470,058.68

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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.