Finding the Fourth Proportional to 1,918,898.08, 2,648,036.88 and 1,047,702.88
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Solution
The fourth proportional to 1,918,898.08, 2,648,036.88 and 1,047,702.88 is: 1,445,806.79
Step by Step Solution
- Step 1: Write the proportion equation
1,918,898.08 : 2,648,036.88 = 1,047,702.88 : x - Step 2: Convert to fraction form
1,918,898.08/2,648,036.88 = 1,047,702.88/x - Step 3: Cross multiply
1,918,898.08x = 2,648,036.88 × 1,047,702.88 - Step 4: Simplify right side
1,918,898.08x = 2,774,355,865,522.21 - Step 5: Solve for x
x = 2,774,355,865,522.21/1,918,898.08 - Step 6: Final answer
x = 1,445,806.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.