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Finding the Fourth Proportional to 553,312.80, 829,969.20 and 524,444.40

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Solution

The fourth proportional to 553,312.80, 829,969.20 and 524,444.40 is: 786,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,312.80 : 829,969.20 = 524,444.40 : x
  2. Step 2: Convert to fraction form
    553,312.80/829,969.20 = 524,444.40/x
  3. Step 3: Cross multiply
    553,312.80x = 829,969.20 × 524,444.40
  4. Step 4: Simplify right side
    553,312.80x = 435,272,699,112.48
  5. Step 5: Solve for x
    x = 435,272,699,112.48/553,312.80
  6. Step 6: Final answer
    x = 786,666.60

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Similar ratio
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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.