Home / 917,285.40-1,376,057.70-286,133.40

Finding the Fourth Proportional to 917,285.40, 1,376,057.70 and 286,133.40

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Solution

The fourth proportional to 917,285.40, 1,376,057.70 and 286,133.40 is: 429,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,285.40 : 1,376,057.70 = 286,133.40 : x
  2. Step 2: Convert to fraction form
    917,285.40/1,376,057.70 = 286,133.40/x
  3. Step 3: Cross multiply
    917,285.40x = 1,376,057.70 × 286,133.40
  4. Step 4: Simplify right side
    917,285.40x = 393,736,068,297.18
  5. Step 5: Solve for x
    x = 393,736,068,297.18/917,285.40
  6. Step 6: Final answer
    x = 429,240.53

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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.