Home / 897,419.80-1,346,129.70-645,477.40

Finding the Fourth Proportional to 897,419.80, 1,346,129.70 and 645,477.40

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Solution

The fourth proportional to 897,419.80, 1,346,129.70 and 645,477.40 is: 968,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,419.80 : 1,346,129.70 = 645,477.40 : x
  2. Step 2: Convert to fraction form
    897,419.80/1,346,129.70 = 645,477.40/x
  3. Step 3: Cross multiply
    897,419.80x = 1,346,129.70 × 645,477.40
  4. Step 4: Simplify right side
    897,419.80x = 868,896,298,818.78
  5. Step 5: Solve for x
    x = 868,896,298,818.78/897,419.80
  6. Step 6: Final answer
    x = 968,216.10

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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.