Home / 709,389.80-1,064,073.48-330,098.38

Finding the Fourth Proportional to 709,389.80, 1,064,073.48 and 330,098.38

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Solution

The fourth proportional to 709,389.80, 1,064,073.48 and 330,098.38 is: 495,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,389.80 : 1,064,073.48 = 330,098.38 : x
  2. Step 2: Convert to fraction form
    709,389.80/1,064,073.48 = 330,098.38/x
  3. Step 3: Cross multiply
    709,389.80x = 1,064,073.48 × 330,098.38
  4. Step 4: Simplify right side
    709,389.80x = 351,248,931,948.96
  5. Step 5: Solve for x
    x = 351,248,931,948.96/709,389.80
  6. Step 6: Final answer
    x = 495,142.35

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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.