Finding the Fourth Proportional to 690,403.02, 1,035,258.24 and 402,307.98
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Solution
The fourth proportional to 690,403.02, 1,035,258.24 and 402,307.98 is: 603,260.18
Step by Step Solution
- Step 1: Write the proportion equation
690,403.02 : 1,035,258.24 = 402,307.98 : x - Step 2: Convert to fraction form
690,403.02/1,035,258.24 = 402,307.98/x - Step 3: Cross multiply
690,403.02x = 1,035,258.24 × 402,307.98 - Step 4: Simplify right side
690,403.02x = 416,492,651,312.76 - Step 5: Solve for x
x = 416,492,651,312.76/690,403.02 - Step 6: Final answer
x = 603,260.18
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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.