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Finding the Fourth Proportional to 652,602.80, 978,904.20 and 608,316.05

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Solution

The fourth proportional to 652,602.80, 978,904.20 and 608,316.05 is: 912,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,602.80 : 978,904.20 = 608,316.05 : x
  2. Step 2: Convert to fraction form
    652,602.80/978,904.20 = 608,316.05/x
  3. Step 3: Cross multiply
    652,602.80x = 978,904.20 × 608,316.05
  4. Step 4: Simplify right side
    652,602.80x = 595,483,136,272.41
  5. Step 5: Solve for x
    x = 595,483,136,272.41/652,602.80
  6. Step 6: Final answer
    x = 912,474.08

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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.