Home / 459,054.80-688,582.20-456,430.40

Finding the Fourth Proportional to 459,054.80, 688,582.20 and 456,430.40

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Solution

The fourth proportional to 459,054.80, 688,582.20 and 456,430.40 is: 684,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,054.80 : 688,582.20 = 456,430.40 : x
  2. Step 2: Convert to fraction form
    459,054.80/688,582.20 = 456,430.40/x
  3. Step 3: Cross multiply
    459,054.80x = 688,582.20 × 456,430.40
  4. Step 4: Simplify right side
    459,054.80x = 314,289,848,978.88
  5. Step 5: Solve for x
    x = 314,289,848,978.88/459,054.80
  6. Step 6: Final answer
    x = 684,645.60

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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.