Finding the Fourth Proportional to 875,438.70, 1,312,137.45 and 402,171.90
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Solution
The fourth proportional to 875,438.70, 1,312,137.45 and 402,171.90 is: 602,788.99
Step by Step Solution
- Step 1: Write the proportion equation
875,438.70 : 1,312,137.45 = 402,171.90 : x - Step 2: Convert to fraction form
875,438.70/1,312,137.45 = 402,171.90/x - Step 3: Cross multiply
875,438.70x = 1,312,137.45 × 402,171.90 - Step 4: Simplify right side
875,438.70x = 527,704,811,327.66 - Step 5: Solve for x
x = 527,704,811,327.66/875,438.70 - Step 6: Final answer
x = 602,788.99
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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.