Home / 459,743.40-688,302.90-446,621.40

Finding the Fourth Proportional to 459,743.40, 688,302.90 and 446,621.40

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Solution

The fourth proportional to 459,743.40, 688,302.90 and 446,621.40 is: 668,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,743.40 : 688,302.90 = 446,621.40 : x
  2. Step 2: Convert to fraction form
    459,743.40/688,302.90 = 446,621.40/x
  3. Step 3: Cross multiply
    459,743.40x = 688,302.90 × 446,621.40
  4. Step 4: Simplify right side
    459,743.40x = 307,410,804,822.06
  5. Step 5: Solve for x
    x = 307,410,804,822.06/459,743.40
  6. Step 6: Final answer
    x = 668,657.35

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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.