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Finding the Fourth Proportional to 556,271.93, 767,670.35 and 314,590.64

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Solution

The fourth proportional to 556,271.93, 767,670.35 and 314,590.64 is: 434,143.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,271.93 : 767,670.35 = 314,590.64 : x
  2. Step 2: Convert to fraction form
    556,271.93/767,670.35 = 314,590.64/x
  3. Step 3: Cross multiply
    556,271.93x = 767,670.35 × 314,590.64
  4. Step 4: Simplify right side
    556,271.93x = 241,501,902,877.17
  5. Step 5: Solve for x
    x = 241,501,902,877.17/556,271.93
  6. Step 6: Final answer
    x = 434,143.61

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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.