Finding the Fourth Proportional to 992,671.42, 1,488,866.54 and 318,663.98
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Solution
The fourth proportional to 992,671.42, 1,488,866.54 and 318,663.98 is: 477,950.84
Step by Step Solution
- Step 1: Write the proportion equation
992,671.42 : 1,488,866.54 = 318,663.98 : x - Step 2: Convert to fraction form
992,671.42/1,488,866.54 = 318,663.98/x - Step 3: Cross multiply
992,671.42x = 1,488,866.54 × 318,663.98 - Step 4: Simplify right side
992,671.42x = 474,448,137,325.23 - Step 5: Solve for x
x = 474,448,137,325.23/992,671.42 - Step 6: Final answer
x = 477,950.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.