Home / 779,397.12-1,168,404.48-379,814.40

Finding the Fourth Proportional to 779,397.12, 1,168,404.48 and 379,814.40

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Solution

The fourth proportional to 779,397.12, 1,168,404.48 and 379,814.40 is: 569,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,397.12 : 1,168,404.48 = 379,814.40 : x
  2. Step 2: Convert to fraction form
    779,397.12/1,168,404.48 = 379,814.40/x
  3. Step 3: Cross multiply
    779,397.12x = 1,168,404.48 × 379,814.40
  4. Step 4: Simplify right side
    779,397.12x = 443,776,846,528.51
  5. Step 5: Solve for x
    x = 443,776,846,528.51/779,397.12
  6. Step 6: Final answer
    x = 569,384.77

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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.