Home / 770,032.95-1,155,128.65-290,664.53

Finding the Fourth Proportional to 770,032.95, 1,155,128.65 and 290,664.53

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Solution

The fourth proportional to 770,032.95, 1,155,128.65 and 290,664.53 is: 436,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,032.95 : 1,155,128.65 = 290,664.53 : x
  2. Step 2: Convert to fraction form
    770,032.95/1,155,128.65 = 290,664.53/x
  3. Step 3: Cross multiply
    770,032.95x = 1,155,128.65 × 290,664.53
  4. Step 4: Simplify right side
    770,032.95x = 335,754,928,302.95
  5. Step 5: Solve for x
    x = 335,754,928,302.95/770,032.95
  6. Step 6: Final answer
    x = 436,026.70

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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.