Home / 918,421.59-1,267,313.53-545,826.51

Finding the Fourth Proportional to 918,421.59, 1,267,313.53 and 545,826.51

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Solution

The fourth proportional to 918,421.59, 1,267,313.53 and 545,826.51 is: 753,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,421.59 : 1,267,313.53 = 545,826.51 : x
  2. Step 2: Convert to fraction form
    918,421.59/1,267,313.53 = 545,826.51/x
  3. Step 3: Cross multiply
    918,421.59x = 1,267,313.53 × 545,826.51
  4. Step 4: Simplify right side
    918,421.59x = 691,733,316,879.69
  5. Step 5: Solve for x
    x = 691,733,316,879.69/918,421.59
  6. Step 6: Final answer
    x = 753,176.23

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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.