Home / 770,335.03-1,155,503.02-290,432.51

Finding the Fourth Proportional to 770,335.03, 1,155,503.02 and 290,432.51

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Solution

The fourth proportional to 770,335.03, 1,155,503.02 and 290,432.51 is: 435,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,335.03 : 1,155,503.02 = 290,432.51 : x
  2. Step 2: Convert to fraction form
    770,335.03/1,155,503.02 = 290,432.51/x
  3. Step 3: Cross multiply
    770,335.03x = 1,155,503.02 × 290,432.51
  4. Step 4: Simplify right side
    770,335.03x = 335,595,642,411.18
  5. Step 5: Solve for x
    x = 335,595,642,411.18/770,335.03
  6. Step 6: Final answer
    x = 435,648.94

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Double scale
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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.