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Finding the Fourth Proportional to 556,502.50, 767,973.45 and 314,779.87

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Solution

The fourth proportional to 556,502.50, 767,973.45 and 314,779.87 is: 434,396.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,502.50 : 767,973.45 = 314,779.87 : x
  2. Step 2: Convert to fraction form
    556,502.50/767,973.45 = 314,779.87/x
  3. Step 3: Cross multiply
    556,502.50x = 767,973.45 × 314,779.87
  4. Step 4: Simplify right side
    556,502.50x = 241,742,582,754.45
  5. Step 5: Solve for x
    x = 241,742,582,754.45/556,502.50
  6. Step 6: Final answer
    x = 434,396.22

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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.