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Finding the Fourth Proportional to 540,430.10, 808,312.35 and 456,449.30

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Solution

The fourth proportional to 540,430.10, 808,312.35 and 456,449.30 is: 682,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,430.10 : 808,312.35 = 456,449.30 : x
  2. Step 2: Convert to fraction form
    540,430.10/808,312.35 = 456,449.30/x
  3. Step 3: Cross multiply
    540,430.10x = 808,312.35 × 456,449.30
  4. Step 4: Simplify right side
    540,430.10x = 368,953,606,338.86
  5. Step 5: Solve for x
    x = 368,953,606,338.86/540,430.10
  6. Step 6: Final answer
    x = 682,703.66

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1.5x scale

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.