Home / 659,467.80-990,368.10-510,071.40

Finding the Fourth Proportional to 659,467.80, 990,368.10 and 510,071.40

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Solution

The fourth proportional to 659,467.80, 990,368.10 and 510,071.40 is: 766,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,467.80 : 990,368.10 = 510,071.40 : x
  2. Step 2: Convert to fraction form
    659,467.80/990,368.10 = 510,071.40/x
  3. Step 3: Cross multiply
    659,467.80x = 990,368.10 × 510,071.40
  4. Step 4: Simplify right side
    659,467.80x = 505,158,443,282.34
  5. Step 5: Solve for x
    x = 505,158,443,282.34/659,467.80
  6. Step 6: Final answer
    x = 766,009.26

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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.