Home / 942,329.40-1,300,440.47-528,891.89

Finding the Fourth Proportional to 942,329.40, 1,300,440.47 and 528,891.89

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Solution

The fourth proportional to 942,329.40, 1,300,440.47 and 528,891.89 is: 729,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,329.40 : 1,300,440.47 = 528,891.89 : x
  2. Step 2: Convert to fraction form
    942,329.40/1,300,440.47 = 528,891.89/x
  3. Step 3: Cross multiply
    942,329.40x = 1,300,440.47 × 528,891.89
  4. Step 4: Simplify right side
    942,329.40x = 687,792,413,740.78
  5. Step 5: Solve for x
    x = 687,792,413,740.78/942,329.40
  6. Step 6: Final answer
    x = 729,885.34

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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.