Finding the Fourth Proportional to 779,822.70, 1,170,252.45 and 442,862.70
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Solution
The fourth proportional to 779,822.70, 1,170,252.45 and 442,862.70 is: 664,588.45
Step by Step Solution
- Step 1: Write the proportion equation
779,822.70 : 1,170,252.45 = 442,862.70 : x - Step 2: Convert to fraction form
779,822.70/1,170,252.45 = 442,862.70/x - Step 3: Cross multiply
779,822.70x = 1,170,252.45 × 442,862.70 - Step 4: Simplify right side
779,822.70x = 518,261,159,688.62 - Step 5: Solve for x
x = 518,261,159,688.62/779,822.70 - Step 6: Final answer
x = 664,588.45
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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.