Home / 740,466.60-1,111,866.30-425,538.60

Finding the Fourth Proportional to 740,466.60, 1,111,866.30 and 425,538.60

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Solution

The fourth proportional to 740,466.60, 1,111,866.30 and 425,538.60 is: 638,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,466.60 : 1,111,866.30 = 425,538.60 : x
  2. Step 2: Convert to fraction form
    740,466.60/1,111,866.30 = 425,538.60/x
  3. Step 3: Cross multiply
    740,466.60x = 1,111,866.30 × 425,538.60
  4. Step 4: Simplify right side
    740,466.60x = 473,142,028,689.18
  5. Step 5: Solve for x
    x = 473,142,028,689.18/740,466.60
  6. Step 6: Final answer
    x = 638,978.22

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1.5x scale

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.