Home / 960,392.70-1,440,661.95-286,421.40

Finding the Fourth Proportional to 960,392.70, 1,440,661.95 and 286,421.40

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Solution

The fourth proportional to 960,392.70, 1,440,661.95 and 286,421.40 is: 429,653.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,392.70 : 1,440,661.95 = 286,421.40 : x
  2. Step 2: Convert to fraction form
    960,392.70/1,440,661.95 = 286,421.40/x
  3. Step 3: Cross multiply
    960,392.70x = 1,440,661.95 × 286,421.40
  4. Step 4: Simplify right side
    960,392.70x = 412,636,412,645.73
  5. Step 5: Solve for x
    x = 412,636,412,645.73/960,392.70
  6. Step 6: Final answer
    x = 429,653.84

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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.