Finding the Fourth Proportional to 2,557,931.60, 3,838,279.80 and 1,138,206.80
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Solution
The fourth proportional to 2,557,931.60, 3,838,279.80 and 1,138,206.80 is: 1,707,925.33
Step by Step Solution
- Step 1: Write the proportion equation
2,557,931.60 : 3,838,279.80 = 1,138,206.80 : x - Step 2: Convert to fraction form
2,557,931.60/3,838,279.80 = 1,138,206.80/x - Step 3: Cross multiply
2,557,931.60x = 3,838,279.80 × 1,138,206.80 - Step 4: Simplify right side
2,557,931.60x = 4,368,756,168,662.64 - Step 5: Solve for x
x = 4,368,756,168,662.64/2,557,931.60 - Step 6: Final answer
x = 1,707,925.33
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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.