Home / 943,580.89-1,302,132.67-513,868.20

Finding the Fourth Proportional to 943,580.89, 1,302,132.67 and 513,868.20

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Solution

The fourth proportional to 943,580.89, 1,302,132.67 and 513,868.20 is: 709,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,580.89 : 1,302,132.67 = 513,868.20 : x
  2. Step 2: Convert to fraction form
    943,580.89/1,302,132.67 = 513,868.20/x
  3. Step 3: Cross multiply
    943,580.89x = 1,302,132.67 × 513,868.20
  4. Step 4: Simplify right side
    943,580.89x = 669,124,571,294.09
  5. Step 5: Solve for x
    x = 669,124,571,294.09/943,580.89
  6. Step 6: Final answer
    x = 709,133.24

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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.