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Finding the Fourth Proportional to 556,462.97, 767,918.95 and 314,740.34

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Solution

The fourth proportional to 556,462.97, 767,918.95 and 314,740.34 is: 434,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,462.97 : 767,918.95 = 314,740.34 : x
  2. Step 2: Convert to fraction form
    556,462.97/767,918.95 = 314,740.34/x
  3. Step 3: Cross multiply
    556,462.97x = 767,918.95 × 314,740.34
  4. Step 4: Simplify right side
    556,462.97x = 241,695,069,668.69
  5. Step 5: Solve for x
    x = 241,695,069,668.69/556,462.97
  6. Step 6: Final answer
    x = 434,341.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.