Finding the Fourth Proportional to 787,920.08, 1,087,203.08 and 448,394
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Solution
The fourth proportional to 787,920.08, 1,087,203.08 and 448,394 is: 618,711.66
Step by Step Solution
- Step 1: Write the proportion equation
787,920.08 : 1,087,203.08 = 448,394 : x - Step 2: Convert to fraction form
787,920.08/1,087,203.08 = 448,394/x - Step 3: Cross multiply
787,920.08x = 1,087,203.08 × 448,394 - Step 4: Simplify right side
787,920.08x = 487,495,337,853.52 - Step 5: Solve for x
x = 487,495,337,853.52/787,920.08 - Step 6: Final answer
x = 618,711.66
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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.