Finding the Fourth Proportional to 2,378,799.16, 3,282,746.09 and 1,291,070.76
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Solution
The fourth proportional to 2,378,799.16, 3,282,746.09 and 1,291,070.76 is: 1,781,679.40
Step by Step Solution
- Step 1: Write the proportion equation
2,378,799.16 : 3,282,746.09 = 1,291,070.76 : x - Step 2: Convert to fraction form
2,378,799.16/3,282,746.09 = 1,291,070.76/x - Step 3: Cross multiply
2,378,799.16x = 3,282,746.09 × 1,291,070.76 - Step 4: Simplify right side
2,378,799.16x = 4,238,257,466,434.24 - Step 5: Solve for x
x = 4,238,257,466,434.24/2,378,799.16 - Step 6: Final answer
x = 1,781,679.40
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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.