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Finding the Fourth Proportional to 556,007.28, 767,281.71 and 314,281.35

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Solution

The fourth proportional to 556,007.28, 767,281.71 and 314,281.35 is: 433,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,007.28 : 767,281.71 = 314,281.35 : x
  2. Step 2: Convert to fraction form
    556,007.28/767,281.71 = 314,281.35/x
  3. Step 3: Cross multiply
    556,007.28x = 767,281.71 × 314,281.35
  4. Step 4: Simplify right side
    556,007.28x = 241,142,331,649.11
  5. Step 5: Solve for x
    x = 241,142,331,649.11/556,007.28
  6. Step 6: Final answer
    x = 433,703.55

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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.