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Finding the Fourth Proportional to 540,038.40, 808,502.40 and 524,486.40

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Solution

The fourth proportional to 540,038.40, 808,502.40 and 524,486.40 is: 785,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,038.40 : 808,502.40 = 524,486.40 : x
  2. Step 2: Convert to fraction form
    540,038.40/808,502.40 = 524,486.40/x
  3. Step 3: Cross multiply
    540,038.40x = 808,502.40 × 524,486.40
  4. Step 4: Simplify right side
    540,038.40x = 424,048,513,167.36
  5. Step 5: Solve for x
    x = 424,048,513,167.36/540,038.40
  6. Step 6: Final answer
    x = 785,219.19

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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.