Finding the Fourth Proportional to 918,726.55, 1,378,369.58 and 469,762.79
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Solution
The fourth proportional to 918,726.55, 1,378,369.58 and 469,762.79 is: 704,787.22
Step by Step Solution
- Step 1: Write the proportion equation
918,726.55 : 1,378,369.58 = 469,762.79 : x - Step 2: Convert to fraction form
918,726.55/1,378,369.58 = 469,762.79/x - Step 3: Cross multiply
918,726.55x = 1,378,369.58 × 469,762.79 - Step 4: Simplify right side
918,726.55x = 647,506,730,311.27 - Step 5: Solve for x
x = 647,506,730,311.27/918,726.55 - Step 6: Final answer
x = 704,787.22
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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.