Finding the Fourth Proportional to 1,139,663.12, 1,572,652.14 and 630,374
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Solution
The fourth proportional to 1,139,663.12, 1,572,652.14 and 630,374 is: 869,870.23
Step by Step Solution
- Step 1: Write the proportion equation
1,139,663.12 : 1,572,652.14 = 630,374 : x - Step 2: Convert to fraction form
1,139,663.12/1,572,652.14 = 630,374/x - Step 3: Cross multiply
1,139,663.12x = 1,572,652.14 × 630,374 - Step 4: Simplify right side
1,139,663.12x = 991,359,020,100.36 - Step 5: Solve for x
x = 991,359,020,100.36/1,139,663.12 - Step 6: Final answer
x = 869,870.23
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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.