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Finding the Fourth Proportional to 450,417.88, 621,305.88 and 297,457.48

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Solution

The fourth proportional to 450,417.88, 621,305.88 and 297,457.48 is: 410,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,417.88 : 621,305.88 = 297,457.48 : x
  2. Step 2: Convert to fraction form
    450,417.88/621,305.88 = 297,457.48/x
  3. Step 3: Cross multiply
    450,417.88x = 621,305.88 × 297,457.48
  4. Step 4: Simplify right side
    450,417.88x = 184,812,081,373.98
  5. Step 5: Solve for x
    x = 184,812,081,373.98/450,417.88
  6. Step 6: Final answer
    x = 410,312.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.