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Finding the Fourth Proportional to 534,547.55, 737,669.74 and 289,526.21

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Solution

The fourth proportional to 534,547.55, 737,669.74 and 289,526.21 is: 399,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,547.55 : 737,669.74 = 289,526.21 : x
  2. Step 2: Convert to fraction form
    534,547.55/737,669.74 = 289,526.21/x
  3. Step 3: Cross multiply
    534,547.55x = 737,669.74 × 289,526.21
  4. Step 4: Simplify right side
    534,547.55x = 213,574,718,917.91
  5. Step 5: Solve for x
    x = 213,574,718,917.91/534,547.55
  6. Step 6: Final answer
    x = 399,542.98

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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.