Finding the Fourth Proportional to 579,689.10, 812,117.70 and 579,689.10
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Solution
The fourth proportional to 579,689.10, 812,117.70 and 579,689.10 is: 812,117.70
Step by Step Solution
- Step 1: Write the proportion equation
579,689.10 : 812,117.70 = 579,689.10 : x - Step 2: Convert to fraction form
579,689.10/812,117.70 = 579,689.10/x - Step 3: Cross multiply
579,689.10x = 812,117.70 × 579,689.10 - Step 4: Simplify right side
579,689.10x = 470,775,778,607.07 - Step 5: Solve for x
x = 470,775,778,607.07/579,689.10 - Step 6: Final answer
x = 812,117.70
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.