Home / 649,315.65-974,465.55-424,601.40

Finding the Fourth Proportional to 649,315.65, 974,465.55 and 424,601.40

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Solution

The fourth proportional to 649,315.65, 974,465.55 and 424,601.40 is: 637,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315.65 : 974,465.55 = 424,601.40 : x
  2. Step 2: Convert to fraction form
    649,315.65/974,465.55 = 424,601.40/x
  3. Step 3: Cross multiply
    649,315.65x = 974,465.55 × 424,601.40
  4. Step 4: Simplify right side
    649,315.65x = 413,759,436,781.77
  5. Step 5: Solve for x
    x = 413,759,436,781.77/649,315.65
  6. Step 6: Final answer
    x = 637,223.88

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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.